DCL-15-044, Decommissioning Funding Report for Diablo Canyon, Units 1 and 2

Decommissioning Funding Report for Diablo Canyon, Units 1 and 2

ML15090A820
Person / Time
Site:	Diablo Canyon
Issue date:	03/31/2015
From:	Halpin E Pacific Gas & Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-15-044
Download: ML15090A820 (46)

Text

Pacific Gas and Electric Company March 31, 2015 PG&E Letter DCL-15-044 Edward D. Halpin Senior Vice President Nuclear Generation & Chief Nuclear Officer Diablo Canyon Power Plant Mail Code 104/6 P. 0. Box 56 Avila Beach, CA 93424 805.545.4100 E-Mail: E1H8@pge.com U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 10 CFR 50. 75(f)

Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Decommissioning Funding Report for Diablo Canyon Power Plant. Units 1 and 2

Dear Commissioners and Staff:

Pacific Gas and Electric Company (PG&E) is submitting the decommissioning fund report for Diablo Canyon Power Plant (DCPP), Units 1 and 2, pursuant to the requirements of 10 CFR 50. 75(f).

Diablo Canyon Power Plant. Units 1 and 2 At the end of calendar year 2014, the market value of the DCPP Units 1 (3411 MWt) and 2 (3411 MWt) decommissioning trust fund Market value was $1,138.7 million and

$1,486.8 million, respectively. TLG Services, Inc. prepared a site-specific decommissioning cost estimate that PG&E submitted to the California Public Utilities Commission (CPUC) in the 2012 Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) on December 12, 2012. Based on this cost estimate, PG&E currently has more funds in the DCPP, Units 1 and 2, decommissioning trust fund than required to meet the minimum NRC decommissioning amount of $646.2 million (2015 dollars) for each unit that was calculated pursuant to the requirements of 10 CFR 50.75(c).

Supporting Cost Estimates Based on site-specific cost estimates prepared by TLG Services, Inc., PG&E estimates that the decommissioning costs are about $1,130.0 million for DCPP, Unit 1 and

$1,165.8 million for Unit 2 in 2015 dollars. These costs do not include site restoration of the facilities ($325.9 million) or spent fuel management costs after shutdown of Units 1 and 2 ($500.1 million).

To assure that sufficient funds will be available for decommissioning, PG&E has established separate external sinking trust fund accounts for DCPP, Units 1 and 2.

Supporting Enclosures Enclosures 1 through 4 provide supporting documentation for this report.

A member of the STARS (Strategic Teaming and Resource Sharing) All iance Callaway Diablo Canyon

• Palo Verde

• Wolf Creek

Document Control Desk March 31, 2015 Page 2 PG&E Letter DCL-15-044 provides decommissioning funding status information in a format suggested by the Nuclear Energy Institute (NEI) and the NRC. provides information on the escalation of the required decommissioning funding amounts from 1986 dollars to 2015 dollars. As required by 10 CFR 50.75(c)(2), and using NUREG 1577, "Standard Review Plan on Power Reactor Licensee Financial Qualifications and Decommissioning Funding Assurance," Revision 1, and NUREG 1307, "Report on Waste Burial Charges," Revision 15, the information includes escalation factors for energy, labor, and waste burial costs. is the 2015 DCPP Appendix C1, Table C-1 for Unit 1 and 2015 DCPP Appendix C2, Table C-2 for Unit 2 from the TLG Services, Inc. decommissioning cost estimate report prepared in December 2012 for PG&E for DCPP, Units 1 and 2. PG&E then adjusted the TLG Services, Inc. cost estimate to reflect the costs in 2015 dollars per the NDCTP submitted on December 12, 2012, to the CPUC by applying the escalation factors included in the submittal. The report provides cost estimates for decommissioning of both nuclear and non-nuclear facilities, including the Diablo Canyon Independent Spent Fuel Storage Installation (ISFSI). is a cash flow for the total decommissioning of DCPP that identifies the monies for NRC scope (removal of radiological contamination), site restoration (including non radiological work), and the spent fuel management based on the TLG Services, Inc.

2012 Cost Estimate by unit.

PG&E is not including the TLG Services Inc. site specific cost estimate prepared in December 2012 as this document was included in the 2013 Decommissioning Funding Report for Diablo Canyon Power Plant, Units 1 and 2, PG&E Letter DCL-13-033 dated April1, 2013.

PG&E makes no regulatory commitments (as defined by NEI 99-04) in this letter.

Should you have any questions, please contact Mr. Bob Kapus at (707) 444-0810.

Edward D. Halpin Senior Vice President, Nuclear Generation and Chief Nuclear Officer bnsm/4540 Enclosures cc:

Diablo Distribution cc/encl: Marc L. Dapas, NRC Region IV Administrator Siva P. Lingam, NRR Project Manager IN PO A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Diablo Canyon

• Palo Verde

• Wolf Creek PG&E Letter DCL-15-044 NRC Decommissioning Funding Status Report Diablo Canyon Power Plant-Units 1 (3411 MWt) and 2 (3411 MWt)

PG&E Letter DCL-15-044 Page 1 of 3 NRC Decommissioning Funding Status Report Diablo Canyon Power Plant-Units 1 (3411 MWt) & 2 (3411 MWt)

As provided in 10 CFR 50.75(f)(1), each power reactor licensee is required to report to the NRC on a calendar year basis, beginning on March 31, 1999, and at least once every 2 years thereafter, on the status of its decommissioning funding for each reactor or share of reactor it owns.

Note that Items 3, 4, and 8 are data included in PG&E's Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) filed with the California Public Utilities Commission (CPUC) on December 12, 2012. PG&E received Decision 14-12-082, issued on December 22, 2014, in which the CPUC reduced the DCPP estimate by

$497.9 million for lack of evidentiary support. PG&E believes that these costs are reasonable and has included them in our current decommissioning estimates.

PG&E will be seeking recovery of this scope in the 2015 NDCTP filing.

1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75 (b) and (c)1 Value in January 2015 dollars

$ in Millions Unit 1 $ 646.2 Unit 2 $ 646.2

2. The amount accumulated at the end of the calendar year preceding the date of the report for items included in 10 CFR 50.75 (b) and (c). (Alternatively, the total amount accumulated at the end of the calendar year preceding the date of the report can be reported here if the cover letter transmitting the report provides the total estimate and indicates what portion of that estimate is for items not included in 10 CFR 50.75 (b) and (c)).

Market Value (December 2014 dollars)

Unit 1 $1,138.7 Unit 2 $1,486.8 1 *The NRC formulas in Section 10 CFR 50.75(c) include only those decommissioning costs incurred by licensees to remove a facility or site safely from service and reduce residual radioactivity to levels that permit: (1) release of the property for unrestricted use and termination of the license; or (2) release of the property under restricted conditions and termination of the license. The cost of dismantling or demolishing nonradiological systems and structures is not included in the NRC decommissioning cost estimates. The costs of managing and storing spent fuel on site until transfer to DOE are not included in the cost formulas.

PG&E Letter DCL-15-044 Page 2 of 3

3. A schedule of the annual amounts remaining to be collected; for items in 10 CFR 50.75 (b) and (c). (Alternatively, the annual amounts remaining to be collected can include items beyond those required in 10 CFR 50.75 (b) and (c) if the cover letter transmitting the report provides a total cost estimate and indicates what portion of that estimate is for items that are not included in 10 CFR 50.75 (b) and (c)).

Unit 1 amount remaining

~

Unit 2 amount remaining

~

4. The assumptions used regarding escalation in decommissioning cost, rates of earnings on decommissioning funds (anticipates that the portfolio of each trust will be gradually converted to a more conservative all income portfolio beginning in 2024 for Units 1 and 2), and rates of other factors used in funding projections; Rate of Return on Qualified Trust Unit 1 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030-2056 Rate of Return on Qualified Trust Unit 2 2014 2015 2016 2017 2018 2019 2020 2021 4.12 percent 4.15 percent 4.18 percent 4.20 percent 4.22 percent 4.24 percent 4.25 percent 4.27 percent 4.28 percent 4.29 percent 4.29 percent 3.91 percent 3.54 percent 3.19 percent 2.86 percent 2.54 percent 2.24 percent 4.10 percent 4.12 percent 4.14 percent 4.15 percent 4.17 percent 4.18 percent 4.19 percent 4.20 percent

2022 2023 2024 2025 2026 2027 2028 2029 2030-2056 PG&E Letter DCL-15-044 Page 3 of 3 4.21 percent 4.22 percent 4.22 percent 3.85 percent 3.50 percent 3.16 percent 2.84 percent

2. 53 percent 2.24 percent

5. Any contracts upon which the licensee is relying pursuant to 1 0 CFR 50. 75( e)( 1 )(v).

NONE

6. Any modifications to a licensee's current method providing financial assurance occurring since the last submitted report.

NONE

7.

Any material changes to trust agreements.

NONE

8.

CPUC Submittal in 2015 Dollars in Millions Total Unit 1 (Decommission 2024)

Scope Excluded from NRC calculations Spent Fuel Management Total NRC Decommissioning Costs Total Unit 2 (Decommission 2025)

Scope Excluded from NRC calculations Spent Fuel Management Total NRC Decommissioning Costs

$ 1,484.4 81.6

~

272.8

$ t, 130.0

$ 1,637.4 244.3

~

227.3

$ 1,165.8

2015 Decommissioning Estimate Unit 1 (1 page) 2015 Decommissioning Estimate Unit 2 (1 page)

Composite Escalation (1 page)

Development of E Component (7 pages)

Development of L Component (9 pages)

Development of B Component (1 page)

PG&E Letter DCL-15-044

2015 Decommissioning Estimate Unit 1 Nuclear Regulatory Commission PG&E Letter DCL-15-044 Estimate of Decommission Costs for Pressurized Water Reactor (PWR) Diablo Canyon Power Plant (DCPP) Unit 1 in 2015 January 1986 Estimate Escalated to 1999 Escalated to 2000 Escalated to 2001 Escalated to 2002 Escalated to 2003 Escalated to 2004 Escalated to 2005 Escalated to 2006 Escalated to 2007 Escalated to 2008 Escalated to 2009 Escalated to 2010 Escalated to 2011 Escalated to 2012 Escalated to 2013 Escalated to 2014 Escalated to 2015 DCPP PWR (millions)

$105

$118.2 (Table 2.1 in NUREG 1307 Revision 10 has no value for 1999 Burial)

(No Submittal Required)

$333.8 ($396.7 in 2001 Submittal)

(No Submittal Required)

$347.5 ($404.8 in 2003 Submittal)

(No Submittal Required)

$404.2 ($427.2 in 2005 Submittal)

(No Submittal Required)

$495.8 ($494.8 in 2007 Submittal)

(No Submittal Required)

$540.4 ($679.5 in 2009 Submittal)

(No Submittal Required)

$588.1 ($546.5 in 2011 Submittal)

(No Submittal Required)

$642.9 ($643.0 in 2013 Submittal)

(No Submittal Required)

$646.2 Based on 10 CFR 50.75 (c), "Table of Minimum Amounts" (January 1986 dollars).

PWR Greater than or equal to 3400 MWt = $105 million per unit between 1200 MWt and 3400 MWt (for PWR less than 1200 MWt, use P=1200 MWt $75+0.0088P)

Page 1 of 1

2015 Decommissioning Estimate Unit 2 Nuclear Regulatory Commission PG&E Letter DCL-15-044 Estimate of Decommission Costs for Pressurized Water Reactor (PWR) Diablo Canyon Power Plant (DCPP)

Unit 2 in 2015 January 1986 Estimate Escalated to 1999 Escalated to 2000 Escalated to 2001 Escalated to 2002 Escalated to 2003 Escalated to 2004 Escalated to 2005 Escalated to 2006 Escalated to 2007 Escalated to 2008 Escalated to 2009 Escalated to 2010 Escalated to 2011 Escalated to 2012 Escalated to 2013 Escalated to 2014 Escalated to 2015 DCPP PWR (millions)

$105

$118.2 (Table 2.1 in NUREG 1307 Revision 10 has no value for 1999 Burial)

(No Submittal Required)

$333.8 ($396.7 in 2001 Submittal)

(No Submittal Required)

$347.5 ($404.8 in 2003 Submittal)

(No Submittal Required)

$404.2 ($427.2 in 2005 Submittal)

(No Submittal Required)

$495.8 ($494.8 in 2007 Submittal)

(No Submittal Required)

$540.4 ($720.9 in 2009 Submittal)

(No Submittal Required)

$588.1 ($546.5 in 2011 Submittal)

(No Submittal Required)

$642.9 ($643.0 in 2013 Submittal)

(No Submittal Required)

$646.2 Based on 10 CFR 50.75 (c), "Table of Minimum Amounts" (January 1986 dollars).

PWR Greater than or equal to 3400 MWt = $105 million per unit between 1200 MWt and 3400 MWt (for PWR less than 1200 MWt, use P=1200 MWt $75+0.0088P)

Page 1 of 1

Composite Escalation Calculating Overall Escalation Rate PWR Jan-86 Jan-99 Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 L (Labor) 1.0000 1.5624 1.6370 0.9365 0.9733 1.0122 1.0612 1.0958 2.0724 2.1465 2.2207 2.2639 E (Energy) 1.0000 0.8499 1.0297 1.1850 0.9909 1.2027 1.2164 1.4656 1.8306 1.7950 2.3262 1.7850 B (Burial) 1.0000 0.0000 10.8039 10.9840 11.1633 11.3433 13.0733 13.3951 13.7247 14.0626 15.0364 15.6505 (1) From NUREG 1307, Revision 15, Report on Waste Burial Charges, Section 2 Summary, Page 3, where A, B, and Care the fractions of the total1986 dollar costs that are attributable to labor (0.65), energy (0.13), and burial (0.22), respectively, and sum to 1.0.

PWR Combined Escalation Rate for:

Jan-86 Jan-99 Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 1.0000 1.1260 3.5748 3.1793 3.2174 3.3098 3.7241 3.8497 4.6044 4.7224 5.0538 Page 1 Jan-09 5.1467 Jan-10 Jan-11 Jan-12 2.2948 2.3175 2.3711 2.0766 2.3145 2.6030 16.2646 17.2446 18.2247 Jan-10 Jan-11 Jan-12 5.3398 5.6011 5.8890 PG&E Letter DCL-15-044 Jan-13 Jan-14 Jan-15 Weight (1) 2.4061 2.4638 2.5235 0.65 2.5667 2.6162 2.2224 0.13 19.2044 19.2044 19.2044 0.22 Jan-13 Jan-14 Jan-15 6.1226 6.1665 6.1542

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series ID: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils PWRwt=

0.58 PWR wt=

0.42 Jan-86 114.2 82.0 1.0000 1.0000 Feb-86 115.0 62.4 1.0070 0.7610 Mar-86 114.4 51.3 1.0018 0.6256 Apr-86 113.7 49.8 0.9956 0.6073 May-86 114.1 47.0 0.9991 0.5732 Jun-86 115.3 44.7 1.0096 0.5451 Jul-86 116.2 36.4 1.0175 0.4439 Aug-86 116.3 40.1 1.0184 0.4890 Sep-86 116.3 46.3 1.0184 0.5646 Oct-86 113.0 43.1 0.9895 0.5256 Nov-86 112.7 43.5 0.9869 0.5305 Dec-86 112.3 45.6 0.9834 0.5561 Jan-87 110.3 51.4 0.9658 0.6268 Feb-87 109.8 53.1 0.9615 0.6476 Mar-87 110.2 49.7 0.9650 0.6061 Apr-87 109.9 52.0 0.9623 0.6341 May-87 111.8 53.3 0.9790 0.6500 Jun-87 113.9 55.1 0.9974 0.6720 Jul-87 116.2 56.3 1.0175 0.6866 Aug-87 115.7 59.4 1.0131 0.7244 Sep-87 115.5 56.8 1.0114 0.6927 Oct-87 111.0 59.3 0.9720 0.7232 Nov-87 109.2 61.2 0.9562 0.7463 Dec-87 109.6 58.1 0.9597 0.7085 Jan-88 108.8 54.8 0.9527 0.6683 Feb-88 109.0 51.5 0.9545 0.6280 Mar-88 109.0 49.7 0.9545 0.6061 Apr-88 109.1 53.3 0.9553 0.6500 May-88 108.9 54.3 0.9536 0.6622 Jun-88 117.2 50.6 1.0263 0.6171 Jul-88 118.2 46.9 1.0350 0.5720 Aug-88 118.3 46.8 1.0359 0.5707 Sep-88 118.5 45.9 1.0377 0.5598 Oct-88 114.2 42.3 1.0000 0.5159 Nov-88 109.2 47.2 0.9562 0.5756 Dec-88 110.5 50.6 0.9676 0.6171 Jan-89 112.0 54.9 0.9807 0.6695 Feb-89 112.0 54.0 0.9807 0.6585 Mar-89 112.3 57.3 0.9834 0.6988 Apr-89 112.4 61.5 0.9842 0.7500 May-89 113.6 57.5 0.9947 0.7012 Jun-89 119.8 53.3 1.0490 0.6500 Jul-89 122.2 52.7 1.0701 0.6427 Aug-89 122.4 53.5 1.0718 0.6524 Sep-89 122.5 59.3 1.0727 0.7232 Oct-89 117.2 64.0 1.0263 0.7805 Page 1 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 1.0000 0.9037 0.8438 0.8325 0.8202 0.8145 0.7766 0.7961 0.8278 0.7947 0.7952 0.8039 0.8235 0.8296 0.8142 0.8245 0.8408 0.8607 0.8785 0.8919 0.8775 0.8675 0.8681 0.8542 0.8333 0.8174 0.8082 0.8271 0.8312 0.8544 0.8405 0.8405 0.8369 0.7967 0.7964 0.8204 0.8500 0.8454 0.8638 0.8859 0.8715 0.8814 0.8906 0.8957 0.9259 0.9230 PG&E Letter DCL-15-044

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series ID: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils Nov-89 113.5 64.4 0.9939 0.7854 Dec-89 114.2 68.1 1.0000 0.8305 Jan-90 114.9 85.3 1.0061 1.0402 Feb-90 115.0 59.4 1.0070 0.7244 Mar-90 115.4 60.4 1.0105 0.7366 Apr-90 115.1 61.0 1.0079 0.7439 May-90 117.0 58.4 1.0245 0.7122 Jun-90 123.9 53.0 1.0849 0.6463 Jul-90 124.4 51.6 1.0893 0.6293 Aug-90 124.6 72.3 1.0911 0.8817 Sep-90 125.0 87.3 1.0946 1.0646 Oct-90 121.2 104.8 1.0613 1.2780 Nov-90 120.2 98.9 1.0525 1.2061 Dec-90 118.9 89.3 1.0412 1.0890 Jan-91 124.2 82.9 1.0876 1.0110 Feb-91 124.3 74.3 1.0884 0.9061 Mar-91 124.3 61.6 1.0884 0.7512 Apr-91 124.7 60.0 1.0919 0.7317 May-91 128.2 59.6 1.1226 0.7268 Jun-91 132.6 57.6 1.1611 0.7024 Jul-91 134.5 58.1 1.1778 0.7085 Aug-91 133.8 62.1 1.1716 0.7573 Sep-91 133.8 65.4 1.1716 0.7976 Oct-91 128.3 67.6 1.1235 0.8244 Nov-91 123.1 71.0 1.0779 0.8659 Dec-91 125.1 62.2 1.0954 0.7585 Jan-92 125.9 54.4 1.1025 0.6634 Feb-92 125.3 57.3 1.0972 0.6988 Mar-92 125.8 56.0 1.1016 0.6829 Apr-92 124.8 59.0 1.0928 0.7195 May-92 128.5 62.1 1.1252 0.7573 Jun-92 134.8 65.4 1.1804 0.7976 Jul-92 135.6 64.6 1.1874 0.7878 Aug-92 135.1 63.3 1.1830 0.7720 Sep-92 135.9 65.6 1.1900 0.8000 Oct-92 131.2 68.2 1.1489 0.8317 Nov-92 125.5 64.2 1.0989 0.7829 Dec-92 126.7 59.4 1.1095 0.7244 Jan-93 127.1 59.0 1.1130 0.7195 Feb-93 126.4 60.4 1.1068 0.7366 Mar-93 126.7 63.2 1.1095 0.7707 Apr-93 126.8 62.4 1.1103 0.7610 May-93 127.5 62.6 1.1165 0.7634 Jun-93 136.9 60.8 1.1988 0.7415 Jul-93 137.1 57.0 1.2005 0.6951 Aug-93 137.2 54.4 1.201 4 0.6634 Sep-93 137.6 59.3 1.2049 0.7232 Oct-93 131.9 65.4 1.1550 0.7976 Page 2 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 0.9063 0.9288 1.0205 0.8883 0.8955 0.8970 0.8933 0.9007 0.8961 1.0031 1.0820 1.1523 1.1170 1.0613 1.0554 1.0119 0.9468 0.9406 0.9564 0.9685 0.9807 0.9976 1.0145 0.9979 0.9889 0.9539 0.9181 0.9299 0.9257 0.9360 0.9707 1.0196 1.0196 1.0104 1.0262 1.0157 0.9662 0.9477 0.9477 0.9513 0.9672 0.9636 0.9682 1.0067 0.9883 0.9754 1.0026 1.0049 PG&E Letter DCL-15-044

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series ID: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 1 00 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils Nov-93 126.3 61.6 1.1060 0.7512 Dec-93 126.0 51.4 1.1033 0.6268 Jan-94 126.2 51.5 1.1051 0.6280 Feb-94 125.9 57.5 1.1025 0.7012 Mar-94 125.8 56.2 1.1016 0.6854 Apr-94 125.4 54.7 1.0981 0.6671 May-94 126.0 54.7 1.1033 0.6671 Jun-94 133.5 54.1 1.1690 0.6598 Jul-94 134.5 56.3 1.1778 0.6866 Aug-94 134.5 57.5 1.1778 0.7012 Sep-94 134.9 57.7 1.1813 0.7037 Oct-94 129.1 57.7 1.1305 0.7037 Nov-94 127.0 58.8 1.1121 0.7171 Dec-94 127.4 54.7 1.1156 0.6671 Jan-95 127.6 54.7 1.1173 0.6671 Feb-95 128.0 53.3 1.1208 0.6500 Mar-95 128.3 54.3 1.1235 0.6622 Apr-95 126.4 57.1 1.1068 0.6963 May-95 130.2 59.1 1.1401 0.7207 Jun-95 135.3 55.8 1.1848 0.6805 Jul-95 136.6 53.5 1.1961 0.6524 Aug-95 136.5 55.6 1.1953 0.6780 Sep-95 133.7 58.2 1.1708 0.7098 Oct-95 131.4 57.8 1.1506 0.7049 Nov-95 127.6 59.5 1.1173 0.7256 Dec-95 127.7 60.6 1.1182 0.7390 Jan-96 127.9 62.6 1.1200 0.7634 Feb-96 127.1 59.7 1.1130 0.7280 Mar-96 127.8 63.5 1.1191 0.7744 Apr-96 129.1 74.7 1.1305 0.9110 May-96 135.0 72.0 1.1821 0.8780 Jun-96 137.5 62.8 1.2040 0.7659 Jul-96 136.0 64.3 1.1909 0.7841 Aug-96 136.2 66.5 1.1926 0.8110 Sep-96 136.2 73.4 1.1926 0.8951 Oct-96 131.2 79.7 1.1489 0.9720 Nov-96 127.1 76.5 1.1130 0.9329 Dec-96 127.7 76.1 1.1182 0.9280 Jan-97 128.3 73.7 1.1235 0.8988 Feb-97 128.1 72.3 1.1217 0.8817 Mar-97 128.2 65.2 1.1226 0.7951 Apr-97 127.3 65.3 1.1147 0.7963 May-97 129.7 64.2 1.1357 0.7829 Jun-97 135.1 60.8 1.1830 0.7415 Jul-97 135.9 57.8 1.1900 0.7049 Aug-97 134.7 61.5 1.1795 0.7500 Sep-97 136.0 60.4 1.1909 0.7366 Oct-97 130.1 64.8 1.1392 0.7902 Page 3 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 0.9570 0.9032 0.9047 0.9339 0.9268 0.9171 0.9201 0.9551 0.9715 0.9776 0.9807 0.9512 0.9462 0.9272 0.9282 0.9231 0.9297 0.9344 0.9640 0.9730 0.9678 0.9780 0.9771 0.9634 0.9528 0.9590 0.9702 0.9513 0.9743 1.0383 1.0544 1.0200 1.0201 1.0323 1.0677 1.0746 1.0373 1.0383 1.0291 1.0209 0.9851 0.9810 0.9876 0.9976 0.9863 0.9991 1.0001 0.9927 PG&E Letter DCL-15-044

Development of E Component PG&E Letter DCL-15-044 Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series 10: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Energy Escalation Related Products Fuel Oils Related Products Fuel Oils Factor (E)

(1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100) for PWR (P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils (Diablo Canyon)

Nov-97 127.9 65.8 1.1200 0.8024 0.9866 Dec-97 128.3 59.4 1.1235 0.7244 0.9559 Jan-98 127.4 54.1 1.1156 0.6598 0.9241 Feb-98 127.2 52.0 1.1138 0.6341 0.9124 Mar-98 126.7 48.3 1.1095 0.5890 0.8909 Apr-98 126.4 50.2 1.1068 0.6122 0.8991 May-98 129.2 50.0 1.1313 0.6098 0.9123 Jun-98 133.8 46.3 1.1716 0.5646 0.9167 Jul-98 134.8 45.0 1.1804 0.5488 0.9151 Aug-98 135.2 44.0 1.1839 0.5366 0.9120 Sep-98 135.2 48.3 1.1839 0.5890 0.9340 Oct-98 130.4 47.4 1.1419 0.5780 0.9051 Nov-98 127.6 46.2 1.1173 0.5634 0.8847 Dec-98 126.6 38.8 1.1086 0.4732 0.8417 Jan-99 126.1 40.9 1.1042 0.4988 0.8499 Feb-99 125.5 38.2 1.0989 0.4659 0.8330 Mar-99 125.5 42.8 1.0989 0.5220 0.8566 Apr-99 125.2 52.5 1.0963 0.6402 0.9048 May-99 127.4 52.6 1.1156 0.6415 0.9165 Jun-99 131.0 52.4 1.1471 0.6390 0.9337 Jul-99 133.9 58.7 1.1725 0.7159 0.9807 Aug-99 133.9 63 1.1725 0.7683 1.0027 Sep-99 134.1 67.6 1.1743 0.8244 1.0273 Oct-99 129.5 65.5 1.1340 0.7988 0.9932 Nov-99 127.5 71.3 1.1165 0.8695 1.0127 Dec-99 126.5 72.9 1.1077 0.8890 1.0159 Jan-00 126.8 75.3 1.1103 0.9183 1.0297 Feb-00 126.7 87.9 1.1095 1.0720 1.0937 Mar-00 126.7 89.7 1.1095 1.0939 1.1029 Apr-00 126.8 83.1 1.1103 1.0134 1.0696 May-00 128.6 82.9 1.1261 1.0110 1.0777 Jun-00 133.6 86.2 1.1699 1.0512 1.1200 Jul-00 136.2 88.7 1.1926 1.0817 1.1461 Aug-00 137.4 91.6 1.2032 1.1171 1.1670 Sep-00 137.8 110.1 1.2067 1.3427 1.2638 Oct-00 134.1 108.6 1.1743 1.3244 1.2373 Nov-00 130.9 108.4 1.1462 1.3220 1.2200 Dec-00 132.7 100.6 1.1620 1.2268 1.1892 Jan-01 136.4 96.1 1.1944 1.1720 1.1850 Feb-01 136.4 91.6 1.1944 1.1171 1.1619 Mar-01 136.5 83.1 1.1953 1.0134 1.1189 Apr-01 135.1 86.2 1.1830 1.0512 1.1277 May-01 136.2 94.2 1.1926 1.1488 1.1742 Jun-01 148.4 90.2 1.2995 1.1000 1.2157 Jul-01 149.5 81.3 1.3091 0.9915 1.1757 Aug-01 148.9 83.2 1.3039 1.0146 1.1824 Sep-01 148.2 93 1.2977 1.1341 1.2290 Oct-01 143.8 76.8 1.2592 0.9366 1.1237 Page 4 of 7

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series 10: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 1 00 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils Nov-01 137.3 70.5 1.2023 0.8598 Dec-01 136.9 56.6 1.1988 0.6902 Jan-02 136.3 58.3 1.1935 0.7110 Feb-02 135.4 59.6 1.1856 0.7268 Mar-02 135.7 69.1 1.1883 0.8427 Apr-02 135.4 76.4 1.1856 0.9317 May-02 137.9 75 1.2075 0.9146 Jun-02 143.6 71.4 1.2574 0.8707 Jul-02 144.9 75.5 1.2688 0.9207 Aug-02 145.0 77.9 1.2697 0.9500 Sep-02 145.8 89.5 1.2767 1.0915 Oct-02 140.0 95.1 1.2259 1.1598 Nov-02 139.5 82.8 1.2215 1.0098 Dec-02 139.6 84.6 1.2224 1.0317 Jan-03 140.3 95.7 1.2285 1.1671 Feb-03 140.6 120.4 1.2312 1.4683 Mar-03 143.3 128.9 1.2548 1.5720 Apr-03 144.3 98.3 1.2636 1.1988 May-03 145.1 85.5 1.2706 1.0427 Jun-03 148.3 87.2 1.2986 1.0634 Jul-03 151.6 90.1 1.3275 1.0988 Aug-03 151.3 94.1 1.3249 1.1476 Sep-03 152.0 88.2 1.3310 1.0756 Oct-03 147.4 97.8 1.2907 1.1927 Nov-03 142.7 93.0 1.2496 1.1341 Dec-03 142.9 95.8 1.2513 1.1683 Jan-04 143.1 106.8 1.2531 1.3024 Feb-04 143.1 100.8 1.2531 1.2293 Mar-04 143.1 107.8 1.2531 1.3146 Apr-04 143.1 115.2 1.2531 1.4049 May-04 144.2 116 1.2627 1.4146 Jun-04 152.4 111.5 1.3345 1.3598 Jul-04 152.2 119.3 1.3327 1.4549 Aug-04 154.0 131.1 1.3485 1.5988 Sep-04 154.0 136.8 1.3485 1.6683 Oct-04 145.8 161.7 1.2767 1.9720 Nov-04 144.9 153.6 1.2688 1.8732 Dec-04 146.2 133.8 1.2802 1.6317 Jan-05 148.9 138.5 1.3039 1.6890 Feb-05 148.0 146 1.2960 1.7805 Mar-05 148.1 169.4 1.2968 2.0659 Apr-05 148.7 170.9 1.3021 2.0841 May-05 151.1 165.3 1.3231 2.0159 Jun-05 159.7 180.6 1.3984 2.2024 Jul-05 162.1 186.2 1.4194 2.2707 Aug-05 162.5 194.5 1.4229 2.3720 Sep-05 162.8 209.9 1.4256 2.5598 Oct-05 159.5 252.0 1.3967 3.0732 Page 5 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 1.0584 0.9852 0.9909 0.9929 1.0431 1.0790 1.0845 1.0950 1.1226 1.1354 1.1989 1.1981 1.1326 1.1423 1.2027 1.3308 1.3880 1.2364 1.1749 1.1998 1.2314 1.2504 1.2237 1.2495 1.2011 1.2164 1.2738 1.2431 1.2789 1.3168 1.3265 1.3451 1.3840 1.4536 1.4828 1.5687 1.5227 1.4278 1.4656 1.4995 1.6198 1.6306 1.6141 1.7361 1.7770 1.8215 1.9019 2.1008 PG&E Letter DCL-15-044

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series 10: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15)

REBASED TO 1986 = 100 PPI for Fuels &

PPI for Light PPI for Fuels &

PPI for Light Related Products Fuel Oils Related Products Fuel Oils (1982 = 100)

(1982 = 100)

(1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils (P) = Industrial Energy Power (F) = Light Fuel Oils Nov-05 161.1 199.1 1.4107 2.4280 Dec-05 161.4 193.6 1.4133 2.3610 Jan-06 167.0 191.8 1.4623 2.3390 Feb-06 168.6 190.0 1.4764 2.3171 Mar-06 167.4 199.2 1.4658 2.4293 Apr-06 169.6 221.9 1.4851 2.7061 May-06 170.8 231.4 1.4956 2.8220 Jun-06 181.2 238.1 1.5867 2.9037 Jul-06 181.9 231.6 1.5928 2.8244 Aug-06 180.2 241.4 1.5779 2.9439 Sep-06 181.0 203.1 1.5849 2.4768 Oct-06 171.2 198.1 1.4991 2.4159 Nov-06 167.2 198.2 1.4641 2.4171 Dec-06 167.8 200.4 1.4694 2.4439 Jan-07 171.9 180.0 1.5053 2.1951 Feb-07 175.7 191.5 1.5385 2.3354 Mar-07 172.1 215.1 1.5070 2.6232 Apr-07 173.1 231.8 1.5158 2.8268 May-07 179.2 225.3 1.5692 2.7476 Jun-07 186.7 222.4 1.6349 2.7122 Jul-07 187.0 237.8 1.6375 2.9000 Aug-07 187.6 225.5 1.6427 2.7500 Sep-07 188.4 238.9 1.6497 2.9134 Oct-07 182.7 243.3 1.5998 2.9671 Nov-07 180.3 288.2 1.5788 3.5146 Dec-07 180.0 266.7 1.5762 3.2524 Jan-08 181.9 273.8 1.5928 3.3390 Feb-08 180.0 280.2 1.5762 3.4171 Mar-08 183.1 339.6 1.6033 4.1415 Apr-08 185.2 352.5 1.6217 4.2988 May-08 189.5 384.9 1.6594 4.6939 Jun-08 191.9 410.5 1.6804 5.0061 Jul-08 196.1 423.8 1.7172 5.1683 Aug-08 197.1 343.9 1.7259 4.1939 Sep-08 195.9 335.1 1.7154 4.0866 Oct-08 193.0 279.0 1.6900 3.4024 Nov-08 187.7 218.2 1.6436 2.6610 Dec-08 188.3 163.0 1.6489 1.9878 Jan-09 190.3 159.8 1.6664 1.9488 Feb-09 190.3 145.6 1.6664 1.7756 Mar-09 187.6 136.8 1.6427 1.6683 Apr-09 186.9 159.9 1.6366 1.9500 May-09 190.5 158.6 1.6681 1.9341 Jun-09 193.3 183.7 1.6926 2.2402 Jul-09 196.2 165.2 1.7180 2.0146 Aug-09 194.7 196.1 1.7049 2.3915 Sep-09 194.9 186.6 1.7067 2.2756 Oct-09 189.9 193.3 1.6629 2.3573 Page 6 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 1.8380 1.8113 1.8306 1.8295 1.8705 1.9979 2.0527 2.1398 2.1101 2.1516 1.9595 1.8842 1.8643 1.8787 1.7950 1.8732 1.9758 2.0664 2.0641 2.0873 2.1677 2.1078 2.1805 2.1741 2.3919 2.2802 2.3262 2.3494 2.6693 2.7461 2.9339 3.0772 3.1666 2.7625 2.7113 2.4092 2.0709 1.7912 1.7850 1.7123 1.6535 1.7682 1.7799 1.9226 1.8426 1.9933 1.9456 1.9545 PG&E Letter DCL-15-044

Development of E Component Calculation of Energy Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.2 Using Regional Indices Series ID: WPU0573 Light Fuel Oils (as of 03/04/15) and WPU0543 Industrial Electric Power (as of 03/04/15}

REBASED TO 1986 = 100 Nov-09 Dec-09 Jan-10 Feb-10 Mar-10 Apr-10 May-10 Jun-10 Jul-1 0 Aug-10 Sep-10 Oct-10 Nov-10 PPI for Fuels &

Related Products (1982 = 100)

(P) = Industrial Energy Power 186.0 186.0 186.3 186.1 189.0 188.8 192.0 197.8 199.8 200.8 200.0 194.6 190.9 PPI for Light Fuel Oils (1982 = 100)

(F) = Light Fuel Oils 207.8 197.5 220.7 200.2 217.0 231.5 226.0 212.4 209.3 221.4 220.0 235.8 245.3 PPI for Fuels &

PPI for Light Related Products Fuel Oils (1986 = 100)

(1986 = 100)

(P) = Industrial Energy Power (F) = Light Fuel Oils 1.6287 2.5341 1.6287 2.4085 1.6313 2.6915 1.6296 2.4415 1.6550 2.6463 1.6532 2.8232 1.6813 2.7561 1.7320 2.5902 1.7496 2.5524 1.7583 2.7000 1.7513 2.6829 1.7040 2.8756 1.6716 2.9915 Page 7 of 7 Energy Escalation Factor (E) for PWR (Diablo Canyon) 2.0090 1.9562 2.0766 1.9706 2.0714 2.1446 2.1327 2.0925 2.0868 2.1538 2.1426 2.1961 2.2260 PG&E Letter DCL-15-044

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Jan-86 Feb-86 Mar-86 90.8 1.01114 Apr-86 May-86 Jun-86 91.2 1.01559 Jul-86 Aug-86 Sep-86 91.6 1.02004 Oct-86 Nov-86 Dec-86 92.5 1.03007 Jan-87 Feb-87 Mar-87 92.6 1.03118 Apr-87 May-87 Jun-87 93.7 1.04343 Jul-87 Aug-87 Sep-87 94.1 1.04788 Oct-87 Nov-87 Dec-87 95.4 1.06236 Jan-88 Feb-88 Mar-88 96.3 1.07238 Apr-88 May-88 Jun-88 97 1.08018 Jul-88 Aug-88 Sep-88 97.7 1.08797 Oct-88 Nov-88 Dec-88 98.8 1.10022 Jan-89 Feb-89 Mar-89 100 1.11359 Apr-89 Page 1 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 May-89 Jun-89 101 1.12472 Jul-89 Aug-89 Sep-89 101.8 1.13363 Oct-89 Nov-89 Dec-89 103.3 1.15033 Jan-90 Feb-90 Mar-90 104.5 1.16370 Apr-90 May-90 Jun-90 105.6 1.17595 Jul-90 Aug-90 Sep-90 106.3 1.18374 Oct-90 Nov-90 Dec-90 107.5 1.19710 Jan-91 Feb-91 Mar-91 108.9 1.21269 Apr-91 May-91 Jun-91 110 1.22494 Jul-91 Aug-91 Sep-91 110.9 1.23497 Oct-91 Nov-91 Dec-91 111.9 1.24610 Jan-92 Feb-92 Mar-92 112.9 1.25724 Apr-92 May-92 Jun-92 114.1 1.27060 Jul-92 Aug-92 Page 2 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Sep-92 114.9 1.27951 Oct-92 Nov-92 Dec-92 116.2 1.29399 Jan-93 Feb-93 Mar-93 116.4 1.29621 Apr-93 May-93 Jun-93 117.8 1.31180 Jul-93 Aug-93 Sep-93 118.1 1.31514 Oct-93 Nov-93 Dec-93 119.4 1.32962 Jan-94 Feb-94 Mar-94 120.5 1.34187 Apr-94 May-94 Jun-94 121.3 1.35078 Jul-94 Aug-94 Sep-94 121.7 1.35523 Oct-94 Nov-94 Dec-94 122.6 1.36526 Jan-95 Feb-95 Mar-95 123.4 1.37416 Apr-95 May-95 Jun-95 123.9 1.37973 Jul-95 Aug-95 Sep-95 125 1.39198 Oct-95 Nov-95 Dec-95 125.9 1.40200 Page 3 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Jan-96 Feb-96 Mar-96 127.3 1.41759 Apr-96 May-96 Jun-96 128.3 1.42873 Jul-96 Aug-96 Sep-96 128.9 1.43541 Oct-96 Nov-96 Dec-96 130.3 1.45100 Jan-97 Feb-97 Mar-97 131.4 1.46325 Apr-97 May-97 Jun-97 132.5 1.47550 Jul-97 Aug-97 Sep-97 133.4 1.48552 Oct-97 Nov-97 Dec-97 135.2 1.50557 Jan-98 Feb-98 Mar-98 136.6 1.52116 Apr-98 May-98 Jun-98 138.5 1.54232 Jul-98 Aug-98 Sep-98 140 1.55902 Oct-98 Nov-98 Dec-98 140.3 1.56236 Jan-99 Feb-99 Mar-99 142.1 1.58241 Apr-99 Page 4 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 May-99 Jun-99 143.3 1.59577 Jul-99 Aug-99 Sep-99 144.7 1.61136 Oct-99 Nov-99 Dec-99 147 1.63697 Jan-00 Feb-00 Mar-00 148.8 1.65702 Apr-00 May-00 Jun-00 150.8 1.67929 Jul-00 Aug-00 Sep-00 151.8 1.69042 Oct-00 Nov-00 Dec-00 84.1 0.93653 Jan-01 Feb-01 Mar-01 85 0.94655 Apr-01 May-01 Jun-01 85.9 0.95657 Jul-01 Aug-01 Sep-01 86.9 0.96771 Oct-01 Nov-01 Dec-01 87.4 0.97327 Jan-02 Feb-02 Mar-02 88.5 0.98552 Apr-02 May-02 Jun-02 89.1 0.99220 Jul-02 Aug-02 Page 5 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series 10: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Sep-02 89.8 1.00000 Oct-02 Nov-02 Dec-02 90.9 1.01225 Jan-03 Feb-03 Mar-03 90.9 1.01225 Apr-03 May-03 Jun-03 92 1.02450 Jul-03 Aug-03 Sep-03 93.2 1.03786 Oct-03 Nov-03 Dec-03 93.8 1.04454 Jan-04 Feb-04 Mar-04 95.3 1.06125 Apr-04 May-04 Jun-04 96.2 1.07127 Jul-04 Aug-04 Sep-04 96.9 1.07906 Oct-04 Nov-04 Dec-04 97.4 1.08463 Jan-05 Feb-05 Mar-05 98.4 1.09577 Apr-05 May-05 Jun-05 99.3 1.10579 Jul-05 Aug-05 Sep-05 99.7 1.11024 Oct-05 Nov-05 Dec-05 Note 1 100 2.06000 Page 6 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Jan-06 Feb-06 Mar-06 100.6 2.07236 Apr-06 May-06 Jun-06 101.8 2.09708 Jul-06 Aug-06 Sep-06 102.5 2.11150 Oct-06 Nov-06 Dec-06 103 2.12180 Jan-07 Feb-07 Mar-07 104.2 2.14652 Apr-07 May-07 Jun-07 104.9 2.16094 Jul-07 Aug-07 Sep-07 105.7 2.17742 Oct-07 Nov-07 Dec-07 106.5 2.19390 Jan-08 Feb-08 Mar-08 107.8 2.22068 Apr-08 May-08 Jun-08 108.4 2.23304 Jul-08 Aug-08 Sep-08 109.3 2.25158 Oct-08 Nov-08 Dec-08 109.4 2.25364 Jan-09 Feb-09 Mar-09 109.9 2.26394 Apr-09 Page 7 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series ID: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 May-09 Jun-09 110 2.26600 Jul-09 Aug-09 Sep-09 110.3 2.27218 Oct-09 Nov-09 Dec-09 110.6 2.27836 Jan-10 Feb-1 0 Mar-10 111.3 2.29278 Apr-10 May-10 Jun-10 111.7 2.30102 Jul-1 0 Aug-10 Sep-10 112.3 2.31338 Oct-1 0 Nov-10 Dec-10 112.5 2.31750 Jan-11 Feb-11 Mar-11 113.5 2.33810 Apr-11 May-11 Jun-11 114.3 2.35458 Jul-11 Aug-11 Sep-11 114.6 2.36076 Oct-11 Nov-11 Dec-11 115.1 2.37106 Jan-12 Feb-12 Mar-12 115.7 2.38342 Apr-12 May-12 Jun-12 116.3 2.39578 Jul-12 Aug-12 Page 8 of 9

Development of L Component PG&E Letter DCL-15-044 Calculation of Labor Escalation Factor-Reference NUREG-1307, Revision 15, Section 3.1 Using Regional Indices Series 10: CIU201 00000002401 (as of 03/04/15)

January 1986 adjusted to reflect NUREG 1307, Revision 15, Scaling Factor for West Labor (Page 7)

Note 1: The Base Labor factor was re-indexed in December 2005, at which time the index was reset to 100.

Employment Cost lndust West Region Labor Private Industry Escalation (1989=1 00)

Factor Dec-85 89.8 1.00000 Sep-12 116.8 2.40608 Oct-12 Nov-12 Dec-12 116.8 2.40608 Jan-13 Feb-13 Mar-13 117.6 2.42256 Apr-13 May-13 Jun-13 118.5 2.44110 Jul-13 Aug-13 Sep-13 119.2 2.45552 Oct-13 Nov-13 Dec-13 119.6 2.46376 Jan-14 Feb-14 Mar-14 120.1 2.47406 Apr-14 May-14 Jun-14 120.9 2.49054 Jul-14 Aug-14 Sep-14 121.9 2.51114 Oct-14 Nov-14 Dec-14 122.5 2.52350 Page 9 of 9

Development of Burial Escalation Developed from NUREG-1307, Revision 15 Development of 8 Component PG&E Letter DCL-15-044 Table 2.1 "VALUES OF B SUB-X AS A FUNCTION OF LLW BURIAL SITE, WASTE VENDOR, AND YEAR" (Summary for non-Atlantic Compact)

Revised to Bx Values for Generic LLW Disposal Site (Assumed to be same as that provided for the Atlantic Compact for lack of a better alternative at this time.

PWR PWR Burial Costs Restated to (South Carolina) 1986 = 100 1986 1.678 1.0000 1987 1988 2.007 1.1961 1989 1990 1991 2.494 1.4863 1992 1993 11.408 6.7986 1994 11.873 7.0757 1995 12.824 7.6424 1996 12.771 7.6108 1997 15.852 9.4470 1998 15.886 9.4672 1999 0.0000 2000 18.129 10.8039 2001 0.0000 2002 18.732 11.1633 2003 19.034 11.3433 2004 21.937 13.0733 2005 22.477 13.3951 2006 23.030 13.7247 2007 23.597 14.0626 2008 25.231 15.0364 2009 26.262 15.6505 2010 27.292 16.2646 2011 28.937 17.2446 2012 30.581 18.2247 2013 32.225 19.2044 2014 32.225 19.2044 2015 32.225 19.2044 Table 2.1 Note (e): Bx values for the generic site are assumed to be the same as that provided for the Atlantic Compact for lack of a better alternative at this time.

Note (f): Effective with NUREG-1307, Revision 8 (Reference3) an alternative disposal option was introduced in which the bulk of the LLW is assumed to be dispositioned by waste vendors and/or disposed of at a non-compact disposal facility.

Note (g): Effective with NUREG1307, Revision 15, the nomenclature for the two disposal options, referred to as "Direct Disposal" and "Direct Disposal with Vendors" in previous revisions of NUREG-1307, is changed to "Compact-Affiliated Disposal.

Facility Only" and "Combination of Comapct-Affiliated and Non-Compact Disposal Facilities" to better describe the options.

2013 has no information in NUREG-1307 Revision 15. 2013 is an estimate that is calculated by applying the average percent change between 2010 and 2012 and adding to the 2012 base.

2015 The NRC has issued Regulatory Issue Summary 2014-12, "Decommissioning Fund Status Report Calculations Update to Low-Level Waste Burial Charge Information," to inform licensees that they may use low-level waste burial charge data contained in Revision 15 of NUREG-1307, Report on Waste Burial Charges: Changes in Decommissioning Waste Disposal Costs at Low-Level Waste Burial Facilities, dated January 2013, when preparing their periodic decommissioning fund status report..

Page 1 of 1

Appendix C-1, Table C-1 Diablo Canyon Power Plant Unit 1 Decon Decommissioning Cost Estimate (7 pages)

Appendix C-2, Table C-2 Diablo Canyon Power Plant Unit 2 Decon Decommissioning Cost Estimate (8 pages)

PG&E Letter DCL-15-044

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index Activity Descri tion PERIOD la-Shutdown through Transition Period 1a Direct Decommissioning Activities 1a.1.1 Prep are preliminary decommissioning cost 1a.1.2 Notification of Cessation of Operations 1a.1.3 Remove fuel & source material 1a.1.4 1a.1.5 1a.1.6 la.1.7 1a.1.8 la.1.9 la.l.lO 1a.l.11 1a.1.12 la.1.18 1a.l.14 1a.l.15 1a.1.16 Notification of Permanent Defueling Deactivate plant systems & process waste Prepare and submit PSDAR Review plant dwgs & specs.

Perform detailed rad survey Estimate by-product inventory End product description Detailed by-product inventory Define major work sequence Perform SER and EA Perform Site-Specific Cost Study Prepare/submit License Termination Plan Receive NRC approval of termination plan Activity Specifications 1a.l.1 7.1 Plant & temporary facilities 1a.l.17.2 Plant systems 1a.l.17.3 NSSS Decontamination Flush 1a.l.17.4 Reactor internals 1a.l.17.5 Reactor vessel 1a.l.17.6 Biological shield 1a.l.17. 7 Steam generators 1a.1.1 7. 8 Reinforced concrete 1a.1.17.9 Main Turbine 1a.l.17.10 Main Condensers 1a.1.1 7.11 Plant structures & buildings 1a.l.17.12 Waste management 1a.l.17.13 Facility & site closeout 1a.1.17 Total Planning & Site Preparations 1a.1.18 Prepare dismantling sequence 1a.l.19 Plant prep. & temp. svces 1a.l.20 Design water clean-up system 1a.l.21 Rigging/Cont. Cntrl Envlps/tooling/etc.

1a.l.22 Procure casks/liners & containers 1a.1 Subtotal Period 1a Activity Costs Period 1a Additional Costs 1a.2.1 Spent Fuel Pool Isolation 1a.2.2 Disposal of Contaminated Tools & Equipment 1a.2 Subtotal Period 1a Additional Costs Period 1a Period-Dependent Costs 1a.4.1 Insurance 1a.4.2 Property taxes 1a.4.3 Health physics supplies 1a.4.4 Heavy equipment rental 1a.4.5 Disposal of DA W generated 1a.4.6 Plant energy budget 1a.4. 7 NRC Fees 1a.4.8 Emergency Planning Fees 1a.4.9 Spent Fnel Pool O&M 1a.4.10 ISFSI Operating Costs 1a.4.11 Severance Related Costs 1a.4.12 Spent Fuel Storage Canisters/Overpacks 1a.4.13 Security Staff Cost 1a.4.14 Utility Staff Cost 1a.4 Subtotal Period 1a Period-Dependent Costs 1a.O TOTAL PERIOD 1a COST PERIOD lb-Decommissioning Preparations Period 1b Direct Decommissioning Activities Detailed Work Procedures 1b.l.1. 1 Plant systems 1b.l.1.2 NSSS Decontamination Flush 1b.l.1.3 Reactor internals 1b.l.l.4 Remainingbuildings 1b.l.1.5 CRD cooling assembly 1b.1.1.6 CRD housings & ICI tubes 1b.l.l. 7 Incore instrumentation 1b.l.1.8 Reactor vessel 1b.l.1.9 Facility closeout 1b.1.1.10 Missile shields 1b.l.l.ll Biological shield 1b.l.1.12 Steam generators 1b.l.1.13 Reinforced concrete TLG Services, Inc.

Dec on Cost Removal Cost 485 480 965 965 Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Packaging Costs 234 234 15 15 249 Transport Costs 97 97 101 Off-Site Processing Costs LLRW Disposal Costs 8,145 8,145 49 49 3,194 Other Costs 191 294 676 147 147 191 1,103 456 735 602 723 613 74 1,044 956 74 459 235 59 59 459 676 182 5,561 358 2,800 206 2,200 181 15,842 19,825 19,825 1,056 165 1,156 1,177 1,001 763 45 35,456 7,353 14,837 33.000 96,010 131,677 696 147 368 198 147 147 147 534 176 66 176 676 147 Total Cantin ency 41 63 144 31 31 41 235 97 156 128 154 130 16 222 203 16 98 50 13 13 98 144 28 1,184 75 596 44 468 38 3,372 4,220 1,170 5,389 150 23 172 102 21 246 167 142 162 10 7,547 1,565 3,158 7,024 20,489 29,250 148 31 78 42 31 31 31 114 38 14 38 144 31 Total Costs 232 a

n/a a

357 820 a

178 178 232 1,337 553 891 730 a

877 743 89 1,266 1,159 89 556 285 71 71 556 820 160 6,744 428 8,396 250 2,668 219 19,214 24,045 4,646 28,691 1,205 189 657 582 89 1,402 1,344 1,143 926 54 43,002 8,919 17,995 40,024 117,533 165,437 844 178 446 241 178 178 178 647 214 80 214 820 178 NRC Lie. Term.

Costs 232 357 820 178 178 232 1,337 553 891 730 789 669 89 1,266 1,159 89 556 143 278 820 80 5,938 428 8,896 250 2,668 219 18,408 24,045 4,646 28,691 1,205 189 657 582 89 1,402 1,344 48,002 17,995 40,024 106,491 153,590 759 178 446 60 178 178 178 647 107 80 214 820 89 Spent Fuel Management Costs 1,143 926 54 8,919 11,042 11,042 Site Restoration Costs 88 74 143 71 71 278 80 806 806 806 84 181 107 89 Decon Cost Removal Cost 531 524 1,055 1,055 Packaging Costs 256 256 17 17 273 Table C-1 Diablo Canyon Unit 1 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C1, Page 1 Of 7 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Transport Processing Disposal Costs Costs Costs 106 106 111 4,337 4,337 68 68 4,404 Other Costs 209 322 741 161 161 209 1,208 499 806 660 793 671 81 1,144 1,047 81 503 258 64 64 503 741 145 6,095 387 3,069 226 2,411 198 17,364 21,730 21,730 1,157 181 1,267 1,291 1,098 836 49 88,863 8,060 16,263 36,171 105,237 144,331 763 161 408 218 161 161 161 585 193 73 193 741 161 Total Cantin ency 44 68 157 34 34 44 257 106 171 140 168 143 17 243 222 17 107 55 14 14 107 157 31 1,294 82 652 48 512 42 3,687 4,614 1,279 5,893 164 26 188 112 22 269 183 155 178 10 8,252 1,712 3,453 7,681 22,405 31,985 162 34 86 46 34 34 34 124 41 15 41 157 84 Total Costs 254 391 899 195 195 254 1,465 606 977 800 961 814 98 1,387 1,270 98 609 313 78 78 609 899 176 7,389 469 3,721 273 2,928 240 21,051 26,345 5,978 82,323 1,321 207 719 636 112 1,537 1,478 1,258 1,014 59 47,115 9,772 19,716 43,852 128,786 182,160 925 195 488 264 195 195 195 709 234 88 234 899 195 NRC Lie. Term.

Costs 253.944 890.682 898.569 195.341 195.341 253.944 1,465.059 605.558 976.706 800.117 864.971 732.535 97.671 1,386.922 1,269.718 97.671 609.464 156.273 304.732 898.569 87.904 6,506.430 468.819 8, 720.784 273.478 2,923.478 240.270 20,168.514 26,344.759 5,977.795 32,322.554 1,320.846 207.078 718.774 636.014 111.667 1,536.578 1,473.245 47,115.820 19,716.077 43,852.125 116,687.723 169,178.790 832.095 195.341 488.353 65.928 195.341 195.341 195.341 709.088 117.205 87.904 234.409 898.569 97.671 Spent Fuel Management Costs 1,252.918 1,014.112 59.486 9,771.610 12,098.071 12,098.071 Site Restoration Costs 96.108 81.393 156.273 78.136 78.136 304.732 87.904 882.682 882.682 882.682 92.455 197.783 117.205 97.671

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index lb.l.1.14 lb.l.1.15 lb.l.1.16 lb.l.1.17 lb.l.l lb.l.2 lb.l Activity Descri tion Main Turbine Main Condensers Auxiliary building Reactor building Total Decon primary loop Subtotal Period 1 b Activity Costs Period lb Additional Costs lb.2.1 Site Characterization lb.2.2 Hazardous Waste Management lb.2.3 Mixed Waste Management lb.2 Subtotal Period lb Additional Costs Period lb Collateral Costs lb.3.1 Decon equipment lb.3.2 DOC staff relocation expenses lb.3.3 Process decommissioning water waste lb.3.4 Process decommissioning chemical flush waste lb.3.5 Small tool allowance 1b.8.6 Pipe cutting equipment 1b.3. 7 Decon rig 1b.8.8 Spent Fuel Transfer-Pool to ISFSI lb.8 Subtotal Period lb Collateral Costs Period 1b Period-Dependent Costs 1b.4.1 1b.4.2 1b.4.3 1b.4.4 1b.4.5 1b.4.6 1b.4.7 1b.4.8 1b.4.9 1b.4.10 lb.4.11 lb.4.12 1b.4.18 lb.4.14 lb.4.15 lb.4.16 lb.4 lb.O Decon supplies Insurance Property taxes Health physics supplies Heavy equipment rental Disposal of DA W generated Plant energy budget NRC Fees Emergency Planning Fees Spent Fuel Pool O&M ISFSI Operating Costs Severance Related Costs Spent Fuel Stora.:e Canisters/Overpacks Security Staff Cost DOC Staff Cost Utility Staff Cost Subtotal Period lb Period-Dependent Costs TOTAL PERIOD lb COST PERIOD 1 TOTALS PERIOD 2a-Large Component Removal Period 2a Direct Decommissioning Activities Nuclear Steam Supply Systell;l Removal 2a.l.l.l Reactor Coolant Piping 2a.l.l.2 Pressurizer Quench Tank 2a.l.l. 3 Reactor Coolant Pumps & Motors 2a.l.l.4 Pressurizer 2a.l.l.5 Steam Generators 2a.l.l.6 Retired Steam Generator Units 2a.l.l. 7 CRDMs/ICis/Service Structure Removal 2a.l.l.8 Reactor Vessel Internals 2a.l.l.9 Reactor Vessel 2a.l.l Totals Removal of Major Equipment 2a.l.2 Main Turbine/Generator 2a.l.3 Main Condensers Cascading Costs from Clean Building Demolition 2a.l.4.1

• Reactor 2a.l.4.2 Containment Penetration Area 2a.l.4.3 Fuel Handlin.:

2a.l.4 Totals Disposal of Plant Systems 2a.l.5.1 Auxiliary Steam 2a.l.5.2 Auxiliary Steam (RCA) 2a.l.5.3 Condensate System 2a.l.5.4 Condensate System (Insulated) 2a.l.5.5 Containment Spray 2a.l.5.6 Extraction Steam & Heater Drip 2a.l.5.7 Feedwater System 2a.l.5.8 Feed water System (Insulated) 2a.l.5.9 Feed water System (RCA Insulated) 2a.l.5.10 Feedwater System (RCA) 2a.l.5.11 Lube Oil Distribution & Purification 2a.l.5.12 Nitrogen & Hydrogen TLG Services, Inc.

Decon Cost 750 750 931 46 1,500 2,479 28 28 3,257 3,257 370 39 118 50 477 196 175 122 1,546 Removal Cost 1,100 1,103 269 288 507 1,610 2,575 354 35 126 70 4,206 112 3,ll0 5,226 13,241 202 668 1,194 78 198 1,460 148 277 679 281 249 263 46 168.

126 6

115 20 Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Packaging Costs 21 63 84 98 342 52 8

108 448 3,368 2,496 262 14,996 2,489 24,170 61 167 43 Transport Costs 66 256 321 324 425 40 6

185 114 1,922 1,878 37 1,468 742 6,892 19 53 15 1

Off-Site Processing Costs LLRW Disposal Costs 88 6,210 6,298 28 28 6,326 9,520 1,342 189 1,443 750 12,807 12,597 444 10,438 2,651 42,661 652 1,786 506 27 Other Costs 229 229 401 401 4,887 4,887 4,765 204 270 5,239 1,415 1,989 3,404 523 82 1,147 346 497 378 22 5,351 7,347 7,357 6,563 16,460 46,074 59,604 191,280 283 283 567 Total Contin ency 49 49 85 85 1,040 532 1,573 2.029 43 57 2,129 198 301 81.

2,267 1

234 319 423 3,825 10 74 12 96 51 12 244 49 70 81 5

1,139 1,564 1,566 1,397 3,504 9,872 17,399 46,649 880 110 694 414 7,260 5,223 381 16,741 8,718 40,422 43 142 254 16 41 311 31 842 145 60 757 56 10 36 234 12 25 4

Total Costs 278 278 487 487 5,927 1,283 7,210 6,794 247 327 7,368 1,129 1,716 302 8,797 3

1,334 1,819 2,412 17,513 38 598 94 365 288 52 1,391 395 567 459 27 6,490 8,911 8,924 7,960 19,963 56,522 88,612 254,049 3,038 387 2,669 1,846 30,039 22,194 1,433 47,212 20,181 128,998 245 810 1,448 89 284 1, 771 179 1,351 824 341 3,011 318 56 204 928 48 140 24 NRC Lie. Term.

Costs 438 438 4,812 1,283 6,095 6,794 247 327 7,368 1,129 1,716 302 8,797 3

1,334 1,819 15,100 38 598 94 365 288 52 1,391 395 6,490 8,924 7,960 19,963 46,557 75,121 228,711 3,038 387 2,669 1,846 30,039 22,194 1,433 47,212 20,181 128,998 1,448 89 234 1, 771 1,351 3,011 923 48 Spent Fuel Management Costs 2,412 2,412 567 459 27 8,911 9,964 12,377 23,418 Site Restoration Costs 278 278 49 49 1,115 1,115 1,115 1,920 245 810 179 824 341 318 56 204 140 24 De con Cost 820 820 1,018 50 1,640 2,710 31 31 3,562 3,562 404 43 129 55 521 214 192 133 1,691 Removal Cost 1,203 1,206 295 260 555 1,760 2,815 387 39 138 77 4,599 123 3,401 5,715 14,479 221 731 1,305 80 211 1,596 161 303 743 308 273 287 50 184 138 7

126 22 Packaging Costs 23 68 92 10 10 102 374 57 9

113 490 8,683 2,729 286 16,398 2,667 26,430 66 182 47 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Table c-1 Appendix C1, Page 2 Of 7 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Transport Processing Disposal Costs Costs Costs 72 279 851 354 465 44 7

202 124 2,101 2,053 41 1,606 812 6,989 21 58 16 121 8,563 8,684 39 39 8,724 13,128 1,851 260 1,990 1,034 17,660 17,372 612 14,394 3,656 58,830 900 2,463 698 37 Other Costs 251 251 440 440 5,356 5,356 5,223 224 296 5,743 1,551 2,180 3,731 574 90 1,257 379 544 415 24 5,866 8,053 8,065 7,193 18,042 50,502 65,331 209,662 311 311 621 Total Contin ency 53 53 93 93 1,137 582 1,720 2,218 47 63 2,328 217 329 88 2,480 1

256 349 463 4,183 11 81 13 105 55 13 267 54 77 88 5

1,246 1, 710 1,712 1,527 3,831 10,795 19,026 51,011 962 120 759 458 7,939 5,711 417 18,306 9,533 44,201 47 156 278 17 45 340 34 374 158 66 828 61 11 39 255 13 27 5

Total Costs 305 305 533 533 6,494 1,403 7,896 7,441 271 359 8,071 1,234 1,880 355 11,393 4

1,459 1,989 2,643 20,957 42 655 108 399 315 65 1,524 438 621 508 29 7,111 9,764 9,777 8,721 21,873 61,934 98,859 281,018 3,705 477 3,331 2,238 36,504 27,865 1,693 54,607 22,826 153,241 268 886 1,583 97 256 1,936 196 1,664 901 373 3,803 348 61 223 1,154 60 153 26 NRC Lie. Term.

Costs 479.953 479.953 5,272.493 1,402.632 6,675.124 7,441.196 271.086 358.790 8,071.072 1,234.257 1,879.771 355.398 11,392.632 3.565 1,458.877 1,989.377 18,313.877 41.739 654.994 102.688 399.079 315.393 64.895 1,523.948 432.639 7,111.019 9, 777.013 8, 720.851 21.872.842 51,017.100 8{077.173 253,255.963 3, 705.268 476.741 3,330.845 2,238.132 36,503.647 27,865.195 1,693.307 54,607.013 22,825.935 153.241.083 1,583.064 97.216 255.944 1,936.223 1,664.070 3,802.856 1,154.089 59.941 Spent Fuel Management Costs 2,648.140 2,643.140 621.308 502.888 29.474 9, 763.601 10,917.271 13,560.411 25,658.482 Site Restoration Costs 304.732 304.732 53.328 53.328 1,221.234 1,221.234 1,221.234 2,103.916 268.326 886.066 195.667 900.700 373.263 348.229 60.697 223.458 152.762 26.210

Diablo Canyon Power Plant Decommissioning Cost Analysis Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Activity Index Decon Removal Packaging Transport Processing Disposal Other Costs Activity Descri tion 2a.l.5.13 Nitrog-en & Hydrog-en (Insulated) 2a.1.5.14 Nitrog-en & Hydrog-en (RCA Insulated) 2a.1.5.15 Nitrog-en & Hydrog-en (RCA) 2a.1.5.16 Oily Water Separator & TB Sump 2a.l.5.17 Saltwater System 2a.l.5.18 Turbine Steam Supply 2a.l.5.19 Turbine Steam Supply (RCA) 2a.l.5.20 Turbine and Generator 2a.l.5.21 Turbine and Generator (Insulated) 2a.l.5 Totals 2a.l.6 Scaffolding-in support of decommissioning-2a.1 Subtotal Period 2a Activity Costs Period 2a Additional Costs 2a.2.1 2a.2 Retired Reactor Head Subtotal Period 2a Additional Costs Period 2a Collateral Costs 2a.3.1 Process decommissioning-water waste 2a.3.2 Process decommissioning-chemical flush waste 2a.3.3 Small tool allowance 2a.3.4 Spent Fuel Transfer-Pool to ISFSI 2a. 3 Subtotal Period 2a Collateral Costs Period 2a Period-Dependent Costs 2a.4.1 Decon supplies

• 2a.4.2 Insurance 2a.4. 3 Property taxes 2a.4.4 Health physics supplies 2a.4.5 Heavy equipment rental 2a.4.6 Disposal ofDAW generated 2a.4. 7 Plant energy budget 2a.4.8 NRC Fees 2a.4.9 2a.4.10 2a.4.11 2a.4.12 2a.4.13 2a.4.14 2a.4.15 2a.4.16 2a.4 2a.O Emerg-ency Planning-Fees Spent Fuel Pool O&M ISFSI Operating-Costs Severance Related Costs Spent Fuel Storage Canisters/Overpacks Security Staff Cost DOC Staff Cost Utility Staff Cost Subtotal Period 2a Period-Dependent Costs TOTAL PERIOD 2a COST PERIOD 2b-Site Decontamination Period 2b Direct Decommissioning-Activities Disposal of Plant Systems 2b.1.1.1 Capital Additions 85-2002 (clean) 2b.1.1.2 Capital Additions 85-2002 (contaminated) 2b.1.1.3 Chemical & Volume Control 2b.1.1.4 Chemical & Volume Control (Insulated) 2b.1.1.5 Component Cooling-Water 2b.1.1.6 Component Cooling-Water (RCA) 2b.1.1. 7 Compressed Air 2b.1.1.8 Compressed Air (Insulated) 2b.1.1.9 Compressed Air (RCA Insulated) 2b.l.l.10 Compressed Air (RCA) 2b.l.l.ll Diesel Engine-Generator 2b.l.1.12 Diesel Engine-Generator (Insulated) 2b.1.1.13 Electrical (Clean) 2b.l.l.14 Electrical (Contaminated) 2b.1.1.15 Electrical (Decontaminated) 2b.l.l.16 Fire Protection 2b.l.1.17 Gaseous Radwaste 2b.l.l.18 HVAC (Clean Insulated) 2b.l.1.19 HVAC (Clean) 2b.1.1.20 HVAC (Contaminated Insulated) 2b.l.1.21 HVAC (Contaminated) 2b.1.1.22 Liquid Radwaste 2b.1.1.23 Liquid Radwaste (Insulated) 2b.l.1.24 Make-up Water 2b.1.1.25 Make-up Water (Insulated) 2b.1.1.26 Make-up Water (RCA Insulated) 2b.l.1.27 Make-up Water (RCA) 2b.1.1.28 Miscellaneous Reactor Coolant 2b.1.1.29 Nuclear Steam Supply Sampling-2b.1.1.80 Nuclear Steam Supply Sampling- (Insulated 2b.l.1.31 Residual Heat Removal 2b.1.1.32 Safety Injection 2b.1.1.33 Safety Injection (Insulated) 2b.l.l.84 Safety Injection (RCA Insulated) 2b.l.l.35 Safety Injection (RCA) 2b.1.1.36 Service Coolin~ Water TLG Services, Inc.

Cost Cost Costs Costs Costs Costs 1,546 84 84 92 92 1,722 875 324 582 69 21 319 1

6 110 37 190 759 862 80 26 4,450 2,465 22,486 287 287 1,863 3,362 5,224 27,997 182 485 1,229 465 196 617 174 6

29 534 179 11 2,130 633 3,324 386 88 29 372 309 1,372 785 86 360 38 44 237 137 182 55 336 128 6

42 350 118 1

12 12 335 633 24,812 225 225 40 40 96 96 25,173 54 197 50 194 67 91 147 10 55 272 116 10 46 17 13 2 '

165 22 1

9 80 112 207 6,604 179 179 122 122 27 27 6,932 19 67 14 67 1

18 38 54 3

22 108 38 3

2 14 5

1 55 7

0 3

25 102 157 3,799 7,034 113 49,808 1,557 1,557 163 163 305 305 51,833 635 2,277 466 2,260 31 595 1,275 1,820 91 733 3,662 1,283 91 81 459 155 141 19 1,878 245 11 95 854 567 9,666 9,666 765 267 1, 770 1,022 1,152 1,229 72 3,173 20,381 23,902 26,041 36,808 116,577 126,809 Total Cantin ency 0

4 78 72 41 161 1,725 17 6

3,814 917 45,648 622 622 149 61 2,057 2,267 32 109 38 661 716 127 377 145 163 262 15 675 4,338 5,087 5,548 7,834 26,122 74,660 39 409 1,907 570 42 1,063 37 22 414 38 2

453 698 708 815 66 6

79 382 1,848 1,171 114 77 7

46 256 121 117 27 1,045 137 6

50 444 25 Total Costs 1

16 305 282 231 920 6,833 98 32 16,138 8,509 151,472 2,583 2,583 558 348 11,723 12,629 124 873 304 2,523 4,077 555 2,146 1,167 1,315 1,491 87 3,848 24,720 28,989 31,584 44,636 148,443 315,127 220 1,603 6,551 1,887 287 4,201 211 7

87 1,626 217 14 2,584 2,735 4,032 3,222 258 35 451 1,501 7,262 3,973 372 437 40 182 1,012 455 457 103 8,798 538 24 198 1,753 143 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 16 306

- 282 6,833 12,770 3,509 147,048 2,583 2,583 558 313 871 124 873 274 2,523 4,077 555 2,146 1,167 3,848 28,989 31,584 44.636 120,799 271,302 1,603 6,551 1,887 4,201 87 1,626 2,735 3,222 258 1,501 7,262 3,973 372 182 1,012 455 457 103 3,793 538 24 198 1,753 11,723 11,723 1,315 1,491 87 24,720 27,613 39,336 231 920 98 82 3,368 4,424 85 35 30 30 4,489 220 287 211 7

217 14 2,584 4,032 35 451 437 40 143 Table C-1 Diablo Canyon Unit 1 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C1, Page 3 Of 7 DE CON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Decon.

Removal Packaging Transport Processing Disposal Cost Cost Costs Costs Costs Costs 1,691 92 92 100 100 1,883 956 354 636 75 22 349 120 41 208 830 942 88 29 4,866 2,695 24,589 314 314 2,037 3,676 5,713 30,615 199 530 1,344 508 214 675 191 7

32 584 196 12 2,330 692 3,635 422 97 31 406 337 1,500 858 94 394 36 49 259 149 199 61 367 140 45 383 129 14 13 866 692 10 27,132 246 246 43 43 105 105 27,527 60 215 54 212 73 100 161 11 60 298 126 11 50 18 14 2

180 24 1

10 87 122 227 7,221 195 195 134 134 30 30 7,580 20 78 15 73 l

19 41 59 3

24 118 41 3

15 5

5 1

60 8

28 141 216 5,239 9, 700 156 68,686 2,147 2,147 225 225 420 420 71,478 876 3,140 642 3,117 48 820 1,759 2,510 126 1,011 5,050 1,769 126 112 633 214 194 26 2,583 337 15 131 1,1 77 Other Total Costs Cantin ency 621 10,595 10,595 838 292 1,940 1,120 1,263 1,348 79 3,478 22,340 26,199 28,544 40,340 127,780 138,996 85 78 44 177 1,886 19 6

4,170 1,008 49,917 681 681 163 67 2,250 2,479 36 119 41 723 782 139 412 159 179 286 17 739 4,744 5,563 6,061 8,566 28,565 81,641 42 447 2,085 628 46 1,162 41 24 452 42 3

496 763 774 891 72 7

86.

418 2,020 1,280 124 84 8

50 280 133 128 29 1,143 150 7

55 485 27 Total Costs 1

19 363 353 252 1,006 8,556 107 35 19,655 8,870 179,857 3,269 3,269 656 381 12,844 13,881 136 957 334 2,759 4,458 694 2,352 1,279 1,441 1,634 96 4,216 27,084 31,762 84,605 48,906 162,712 359,719 241 1,934 7,814 2,196 260 5,239 231 8

104 1,948 237 15 2,825 3,355 4,409 4,043 309 38 493 1,850 8,987 4,711 433 478 43 222 1,237 541 540 118 4,682 659 30 244 2,161 156 NRC Lie. Term.

Costs 19.081 362.532 353.475 8,556.151 15,972.194 3,869.723 175,019.224 3,269.157 3,269.157 656.226 342.660 998.886 135.595 957.146 300.235 2, 759.229 4,458.425 694.264 2,351.595 1.278.998 4,216.361 31,761.784 84,605.074 48,905.615 132,424.322 311,711.590 1,938.837 7,814.159 2,196.243 5,238.630 108.863 1,948.352 3,355.189 4,042.849 308.674 1,850.457 8,986.501 4, 710.962 433.350 222.204 1,237.339 541.324 540.485 118.265 4,682.441 658.650 29.689 243.992 2,160.804 Spent Fuel Site Management Restoration Costs Costs 12,844.351 12,844.351 1,441.274 1,633.693 95.748 27,083.814 30,254.529 43,098.880 1.379 252.486 1,006.256 106.706 35.141 3,682.955 4,887.347 38.073 38.073 33.359 33.359 4,908.780 241.024 259.638 231.157 8.200 287.481 14.866 2,825.402 4,408.786 38.012 492.844 477.604 43.283 155.965

Diablo Canyon Power Plant Decommissioning Cost Analysis Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Activity Index Decon Removal Packaging Transport Processing Disposal Other Costs Activity Descri tion 2b.l.l.37 Service Cooling Water (RCA) 2b.l.1 Totals 2b.l.2 Scaffolding in support of decommissioning Decontamination of Site Buildings 2b.l.3.1

• Reactor 2b.l.3.2 Capital Additions 85-2004 2b.l.3.3 Containment Penetration Area 2b.l.3 Totals 2b.1 Subtotal Period 2b Activity Costs Period 2b Collateral Costs 2b. 3.1 Process decommissioning water waste 2b.3.2 Process decommissioning chemical flush waste 2b.3.3 Small tool allowance 2b.3.4 Spent Fuel Transfer-Pool to ISFSI 2b.3 Subtotal Period 2b Collateral Costs Period 2b Period-Dependent Costs 2b.4.1 2b.4.2 2b.4.3 2b.4.4 2b.4.5 2b.4.6 2b.4.7 2b.4.8 2b.4.9 2b.4.10 2b.4.11 2b.4.12 2b.4.13 2b.4.14 2b.4.15 2b.4.16 2b.4.17 2b.4 2b.O Decon supplies Insurance Property taxes Health physics supplies Heavy equipment rental Disposal of DA W generated Plant energy budget NRC Fees Emergency Planning Fees Spent Fuel Pool O&M Liquid Radwaste Processing Equipment/Services ISFSI Operating Costs Severance Related Costs Spent Fuel Storage Canisters/Overpacks Security Staff Cost DOC Staff Cost Utility Staff Cost Subtotal Period 2b Period-Dependent Costs TOTAL PERIOD 2b COST PERIOD 2c-Spent fuel delay prior to SFP decon Period 2c Direct Decommissioning Activities Period 2c Collateral Costs 2c.3.1 Spent Fuel Transfer-Pool to ISFSI 2c. 3 Subtotal Period 2c Collateral Costs Period 2c Period-Dependent Costs 2c.4.1 Insurance 2c.4.2 Property taxes 2c.4.3 Health physics supplies 2c.4.4 Disposal ofDAW generated 2c.4.5 Plant energy budget 2c.4.6 NRC Fees 2c.4. 7 Emergency Planning Fees 2c.4.8 Spent Fuel Transfer-Pool or ISFSI to DOE 2c.4.9 Spent Fuel Pool O&M 2c.4.10 Liquid Radwaste Processing Equipment/Services 2c.4.11 ISFSI Operating Costs 2c.4.12 Spent Fuel Storage Canisters/Overpacks 2c.4.13 Security Staff Cost 2c.4.14 Utility Staff Cost 2c.4 Subtotal Period 2c Period-Dependent Costs 2c.O TOTAL PERIOD 2c COST PERIOD 2d -Decontamination Following Wet Fuel Storage Period 2d Direct Decommissioning Activities 2d.l.1 Remove spent fuel racks Disposal of Plant Systems 2d.l.2.1 Electrical (Contaminated) - FHB 2d.l.2.2 Electrical (Decontaminated) - FHB 2d.l.2.3 Fire Protection (RCA) 2d.l.2.4 HVAC (Contaminated)- FHB 2d.l.2.5 Spent Fuel Pit Cooling 2d.l.2.6 Spent Fuel Pit Cooling-FHB 2d.l.2 Totals Decontamination of Site Buildings 2d.l.3.1 Fuel Handling 2d.l. 3 Totals 2d. l.4 Scaffolding in support of decommissioning TLG Services, Inc.

Cost Cost Costs Costs Costs Costs 2,188 958 33 327 1,318 3,506 133 3

136 796 796 4,439 585 811 811 30 15,679 3,081 2,488 27 218 2,724 21,484 408 408 2,527 4,962 7,490 29,882 2,437 2,437_

2,487 56 184 1,165 250 326 94 180 2,150 859 859 616 7

1,635 12 1,120 7

26 1,153 2,800 65 103 168 104 104 8,072 70 70 70 174 14 183 50 64 65 70 896 68 63 2

567 5,645 3

28 5,677 6,250 199 420 620 29 29 6,899 20 20 20 36 6

53 14 25 21 23 140 41 41 73 19,225 141 26,011 96 379 26,486 45,852 266 782 1,048 330 830 47,230 220 220 220 1,207 194 1,781 471 838 706 764 4,754 637 637 28 7,355 7,355 1,188 897 2,079 1,521 1,714 1,829 465 107 7,661 11,034 35,568 26,238 38,925 128,671 186,026 7,990 7,990 3,475 1,211 1,692 2,671 5,232 12,978 5,585 355 327 11,985 108,574 8,384 162,464 170,454 Total Contin ency 38 13,278 1,146 12,149 69 452 12,669 27,093 241 384 87 1,566 2,277 288 162 56 897 1,056 138 443 216 243 389 99 23 1,631 2,849 7,571 5,584 8,285 29,422 58,793 1, 701 1,701 493 172 864 92 360 379 742 2,761 1,189 75 70 2,551 23,110 1,785 34,644 36,344 896 138 1,075 266 427 297 382 2,535 1,124 1,124 229 Total Costs 149 52,572 4,887 48,366 236 1,425 50,027 106,986 904 1,692 495 8,921 12,012 1,079 1,800 458 8,424 6,018 601 2,522 1,737 1,957 2,219 563 130 9,291 13,383 43,139 31,816 4 7,210 166,842 285,840 9,691 9,691 3,968 1,383 3,301 401 2,053 3,050 5,975 15,785 6,773 480 397 14,585 131,684 10, 169 199,858 209,544 2,954 586 4,206 1,052 1,680 1,188 1,319 9,976 3,534 3,534 877 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 149 43,945 4,387 48,366 236 1,425 50,027 98,358 904 1,692 495 3,091 1,079 1,800 458 8,424 6,018 601 2,522 1,737 563 9,291 48,139 31,816 47,210 149,158 250,603 3,968 1,383 3,301 401 2,053 3,050 480 131,684 10,169 156,438 156,488 2,954 586 4,206 1,052 1,680 1,188 1,319 9,976 3,584 3,584 877 8,921 8,921 1,957 2,219 130 13,383 17,689 26,610 9,691 9,691 5,975 15,785 6,773 397 14,585 43,415 53,106 8,628 8,628 8,628 De con Cost 2,893 1,048 36 357 1,441 3,834 146 3

149 871 871 4,854 640 887 887 Table C-1 Diablo Canyon Unit 1 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C1, Page 4 Of 7 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off--Site LLRW Removal Packaging Transport Processing Disposal Cost Costs Costs Costs Costs 83 17,145 8,369 2,715 30 233 2,979 23,493 446 446 2,764 5,426 8,190 32,129 2,665 2,665 2,665 62 202 1,274 274 357 102 143 2,851 940 940 674 8

1,788 18 1,225 8

28 1,261 3,062 71 118 188 114 114 3,359 76 76 76 190 15 145 55 70 71 77 438 69 69 2

620 6,173 3

31 6,207 6,834 218 460 678 32 82 7,544 21 21 21 39 6

57 15 27 23 25 153 45 45 100 26,511 195 85,869 133 523 36,524 63,230 367 1,079 1,446 454 454 65,130 303 303 303 1,665 268 2,456 650 1,155 974 1,053 6,556 878 878 39 Other Total Costs Contin enc 8,062 8,062 1,248 435 2,279 1,667 1,879 2,005 509 118 8,397 12,095 88,986 28,753 42,666 141,036 149,098 8,758 8,758 3,809 1,327 1,855 2,927 5,785 14,220 6,121 389 359 13,136 119,008 9,190 178,076 186,834 41 14,519 1,258 13,285 75 494 13,854 29,627 263 420 95 1,712 2,490 309 177 62 980 1,155 151 484 236 266 426 108 25 1,783 2,568 8,279 6,106 9,060 82,178 64,290 1,860 1,860 539 188 945 101 894 414 812 8,020 1,800 88 76 2,789 25,271 1,951 37,883 39,743 979 150 1,176 291 467 325 368 2,772 1,229 1,229 251 Total Costs 184 62,977 4,837 60,315 285 1,667 62,266 130,080 1,065 2,074 541 9,774 18,454 1,180 1,424 496 3,744 6,581 751 2,763 1,903 2,145 2,431 617 142 10,180 14,663 47,265 84,859 51,726 182,871 326,404 10,618 10,618 4,348 1,515 8,610 501 2,249 3,342 6,547 17,240 7,421 471 485 15,926 144,278 11,141 219,025 229,642 3,574 642 5,108 1,285 2,076 1,495 1,661 12,266 4,047 4,047 967 NRC Lie. Term.

Costs 184.122 53,542.380 4,837.154 60,314.727 285.024 1,666.515 62,266.265 119,590.151 1,064.768 2,074.062 540.799 8,679.629 1,179.888 1,424.324 496.420 3,744.251 6,581.037 751.208 2, 762.682 1,903.271 617.313 10,179.682 47,264.568 84,859.097 51,725.876 168,489.558 286,759.338 4,347.851 1,515.358 3,609.836 501.456 2,248.876 8,841.802 471.107 144,278.462 11,141.449 171,456.197 171,456.197 3,574.436 641.611 5,108.066 1,284.776 2,076.184 1,495.070 1,660.686 12,266.892 4,046.597 4,046.597 967.431 Spent Fuel Site Management Restoration Costs Costs 9, 778.885 9, 778.885 2,144.753 2,431.091 142.483 14,662.920 19,381.247 29,155.131 10,617.614 10,617.614 6,547.010 17,289.682 7,421.079 434.989 15,925.673 47,568.383 58,185.997 9,434.260 10,489.938 10,489.988

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index Activity Descri tion 2d.1 Subtotal Period 2d Activity Costs Period 2d Additional Costs 2d.2.1 License Termination Survey Planning 2d.2 Subtotal Period 2d Additional Costs Period 2d Collateral Costs 2d.8.1 Process decommissioning water waste 2d.8.2 Process decommissioning chemical flush waste 2d.8.8 Small tool allowance 2d.8.4 Decommissioning Equipment Disposition 2d.3 Subtotal Period 2d Collateral Costs Period 2d Period-Dependent Costs 2d.4.1 Decon supplies 2d.4.2 Insurance 2d.4.3 Property taxes 2d.4.4 Health physics supplies 2d.4.5 Heavy equipment rental 2d.4.6 Disposal of DAW generated 2d.4. 7 Plant energy budget 2d.4.8 NRC Fees 2d.4.9 Emergency Planning Fees 2d.4.10 Spent Fuel Transfer-Pool or ISFSI to DOE 2d.4.11 Liquid Radwaste Processing Equipment/Services 2d.4.12 ISFSI Operating Costs 2d.4.13 Severance Related Costs 2d.4.14 Security Staff Cost 2d.4.15 DOC Staff Cost 2d. 4.16 Utility Staff Cost 2d.4 Subtotal Period 2d Period-Dependent Costs 2d.O TOTAL PERIOD 2d COST PERIOD 2f-License Termination Period 2f Direct Decommissioning Activities 2f.l.1 ORISE confirmatory survey 2f.l.2 Terminate license 2f.1 Subtotal Period 2f Activity Costs Period 2f Additional Costs 2f.2.1 License Termination Survey 2f.2 Subtotal Period 2f Additional Costs Period 2f Collateral Costs 2f.3.1 DOC staff relocation expenses 2f.3 Subtotal Period 2f Collateral Costs Period 2fPeriod-Dependent Costs 2f.4.1 Insurance 2f.4.2 Property taxes 2f.4.3 Health physics supplies 2f.4.4 Disposal ofDAW generated 2f.4.5 Plant energy budget 2f.4.6 NRC Fees 2£.4. 7 Emergency Planning Fees 2£.4.8 Spent Fuel Transfer-Pool or ISFSI to DOE 2f.4.9 ISFSI Operating Costs 2f.4.1 0 Security Staff Cost 2£.4.11 DOC Staff Cost 2f.4.12 Utility Staff Cost 2f.4 Subtctal Period 2fPeriod-Dependent Costs 2f.O TOTAL PERIOD 2f COST PERIOD 2 TOTALS PERIOD 3b-Site Restoration Period 8b Direct Decommissioning Activities Demolition of Remaining Site Buildings 3b.l.l.1

• Reactor 3b.l.l.2 Capital Additions 85-2004 8b.l.l. 8 Containment Penetration Area 8b.1.1.4 Miscellaneous 3b.l.1.5 Turbine 3b.l.l.6 Turbine Pedestal 3b.l.l.7 FuelHandling 3b.l.1 Totals Site Closeout Activities 8b.1.2 Grade & landscape site 3b.1.3 Final report to NRC 3b.1 Subtotal Period 3b Activity Costs TLG Services, Inc.

Table C-1 Diablo Canyon Unit 1 DECON Deconunissioning Cost Estimate (Thousands of 2011 Dollars)

Off..Site LLRW Decou Removal Packaging Transport Processing Disposal Other Costs Cost Cost Costs Costs Costs Costs 1,396 34 34 209 209 1,639 7,800 3,682 84 84 443 953 1,396 5,161 632 632 632 65,609 6,798 302 686 28 3,659 1,318 1,858 14,650 2,758 17,407 635 19 155 174 34 34 842 29,166 218 58 54 112 339 14,192 6,626 77 1,828 1,905 106 106 8,638 27 27 27 107,948 800 800 219 76 213 250 165 690 178 21 9,595 1,035 3,363 4,500 20,304 21,103 178 178 9,248 9,248 1,415 1,415 819 125 174 462 269 1,180 34 1,694 4,689 5,150 14,047 24,887 479,280 229 229 Total Contin ency 4,784 340 340 67 18 682 766 74 31 11 157 208 44 45 35 23 147 38 2,042 220 716 958 4,750 10,641 76 76 3,937 3,937 301 301 45 18 224 11 37 66 38 241 7

361 998 1,096 3, 142 7,456 187,894 1,447 64 146 6

779 281 395 3,118 587 49 3,754 Total Costs 17,342 1,140 1,140 255 101 2,718 3,075 283 250 87 600 1,156 194 258 285 188 887 216 25 11,637 1,255 4,078 5,458 26,808 48,864 254 a

254 13,184 13,184 1, 716 1, 716 365 142 856 49 211 528 308 1,371 41 2,055 5,687 6,246 17,859 33,012 891,887 8,245 366 832 34 4,438 1,599 2,253 17,768 3,345 278 21,391 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 17,342 1,140 1,140 255 101 2,718 3,075 283 250 87 600 1,156 194 258 285 216 11,637 1,255 4,078 5,458 25,757 47,314 254 254 13,184 13,184 1,716 1,716 365 142 856 49 211 528 2,055 5,687 6,246 16,140 31,293 756,949 278 278 188 837 25 1,050 1,050 308 1,371 41 1,719 1,719 121,822 13,117 8,245 366 832 34 4,438 1,599 2,253 17,768 3,345 21,113 Decou Cost 1,527 37 37 229 229 1,793 8,529 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Table c-1 Appendix C1, Page 5 Of 7 Diablo Canyon Unit 1 DECON Deconunissioning Cost Estimate (Thousands of 2015 Dollars)

Off..Site LLRW Removal Packaging Transport Processing Disposal Cost Costs Costs Costs Costs 4,026 91 91 484 1,042 1,526 5,644 691 691 691 71,743 7,434 330 750 31 4,002 1,442 2,031 16,019 3,016 19,035 695 21 169 190 37 37 921 31,893 238 64 59 122 10 10 371 15,519 9,138 107 2,520 2,627 146 146 11,911 37 37 37 148,860 Other Total Costs Contin enc 877 877 240 83 233 274 180 757 196 23 10,517 1,134 3,686 4,933 22,255 23,132 195 195 10,136 10,136 1,551 1,551 350 137 191 506 295 1,239 37 1,857 5,140 5,645 15,397 27,279 525,339 251 251 5,231 372 372 73 19 746 838 81 34 12 172 222 49 50 89 26 161 42 5

2,233 241 783 1,047 5,194 11,635 83 83 4,305 4,305 329 329 50 19 245 12 41 72 42 263 8

394 1,091 1,199 3,436 8,153 205,462 1,582 70 160 7

852 307 432 3,410 642 53 4,105 Total Costs 20,855 1,249 1,249 301 111 3,494 3,906 310 273 95 656 1,264 242 283 313 206 917 237 27 12,750 1,375 4,468 5,980 29,397 55,407 278 278 14,441 14,441 1,880 1,880 400 156 936 62 232 578 337 1,502 45 2,251 6,231 6,844 19,578 36,172 1,007,344 9,016 400 910 37 4,853 1,749 2,461 19,429 3,657 305 23,391 NRC Lie. Term.

Costs 20,854.857 1,248.840 1,248.840 301.212 110.746 3,493.934 3,905.892 309.728 273.470 95.313 656.204 1,263.559 241.934 282.899 312.635 237.048 12,750.138 1,375.264 4,468.290 5,979.896 28,246.378 54,255.966 278.054 278.054 14,440.986 14,440.986 1,879.771 1,879. 771 399.536 156.018 935.802 61.688 231.539 578.110 2.251.177 6,231.383 6,843.851 17,689.103 34,287.914 858,471.005 304.732 304.732 Spent Fuel Site Management Restoration Costs Costs 205.897 917.454 27.357 1,150.708 1,150.708 337.034 1,501.784 44.780 1,883.599 1,883.599 133,474.314 15,398.718 9,015.794 400.405 909.754 37.492 4,853.298 1, 748.602 2,463.736 19,429.081 3,657.483 3,657.483

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index Activity Descri tion Period 3b Additional Costs 3b.2. 1 Concrete Crushing 3b.2.2 Cofferdam Construction and Teardown 3b.2.3 Soil I Sediment Control Plant Area 3b.2 Subtotal Period 3b Additional Costs Period 3b Collateral Costs 3b.3.1 Small tool allowance 3b.3 Subtotal Period 3b Collateral Costs Period 3b Period-Dependent Costs 3b.4.1 Insurance 3b.4.2 Property taxes 3b.4.3 Heavy equipment rental 3b.4.4 Plant energy budget 3b.4.5 NRC ISFSI Fees 3b.4.6 Emergency Planning Fees 3b.4. 7 Spent Fuel Transfer - Pool or ISFSI to DOE 3b.4.8 ISFSI Operating Costs 3b.4.9 Security Staff Cost 3b.4.10 DOC Staff Cost 3b. 4.11 Utility Staff Cost 3b.4 Subtotal Period 3b Period-Dependent Costs 3b.O TOTAL PERIOD 3b COST PERIOD 3c-Fuel Storage Operations/Shipping Period Sc Direct Decommissioning Activities Period Sc Period-Dependent Costs 3c.4.1 Insurance 3c.4.2 Property taxes 3c.4.3 Plant energy budget 3c.4.4 NRC ISFSI Fees 3c.4.5 Emergency Planning Fees 3c.4.6 Spent Fuel Transfer - Pool or ISFSI to DOE 3c.4. 7 ISFSI Operating Costs 3c.4.8 Security Staff Cost 3c.4.9 Utility Staff Cost 3c.4 Subtotal Period 3c Period-Dependent Costs 3c.O TOTAL PERIOD 3c COST PERIOD 3d-GTCC shipping Period 3d Direct Decommissioning Activities Nuclear Steam Supply System Removal 3d.1.1.1 Vessel & Internals GTCC Disposal 3d.l.1 Totals 3d.1 Subtotal Period 3d Activity Costs Period 3d Collateral Costs 3d.3 Subtotal Period 3d Collateral Costs Period 3d Period-Dependent Costs 3d.4.1 Insurance 3d.4.2 Property taxes 3d.4.3 Plant energy budget 3d.4.4 NRC ISFSI Fees 3d.4.5 ISFSI Operating Costs 3d.4.6 Security Staff Cost 3d.4. 7 Utility Staff Cost 3d.4 Subtotal Period Sa Period-Dependent Costs

. Sd.O TOTAL PERIOD 3d COST PERIOD 3e-ISFSI Decontamination Period 3e Direct Decommissioning Activities Period 3e Additional Costs 8e.2.1 ISFSI License Termination 3e.2 Subtotal Period 3e Additional Costs Period Se Collateral Costs 3e.3.1 Small tool allowance 3e.3 Subtotal Period Se Collateral Costs Period 3e Period-Dependent Costs 3e.4.1 Insurance 3e.4.2 3e.4.3 3e.4.4 3e.4.5 3e.4.6 Property taxes Heavy equipment rental Plant energy budget NRC ISFSI Fees Security Staff Cost TLG Services, Inc.

Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Decon Removal Packaging Transport Processing Disposal Cost Cost Costs Costs Costs Costs 476 478 1,052 2,006 210 210 7,347 7,347 26,970 40 40 136 2,500 2,500 2,500 2,500 14 14 9,179 9,179 9,179 9,179 393 393 Other Costs 525 410 286 348 885 3,711 111 5,569 14,111 7,357 33,312 33,542 3,099 2,420 2,054 5,228 21,995 654 26,771 8,802 71,024 71,024 10 8

2 85 28 139 139 622 622 55 94 61 Total Contin ency 101 102 224 427 45 45 74 58 1,564 61 49 126 790 24 1,185 3,003 1,566 8,501 12,726 440 343 292 742 4,682 139 5,698 1,874 14,209 14,209 2,309 2,309 2,309 1

0 18 6

28 2,336 290 290 29 18 18 Total Costs 577 580 1,276 2,433 254 254 599 468 8,911 347 397 1,011 4,501 134 6,754 17,114 8,923 49,160 73,238 3,539 2,764 2,346 5,970 26,676 798 82,469 10,676 85.238 85,233 13,988 13,988 13,988 11 9

7 3

103 34 167 14,155 1,365 1,365 63 165 107 74 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 278 13,988 13,988 13,988 13,988 599 468 397 1,011 4,501 134 5,471 1,785 14,366 14,366 3,539 2,764 2,346 5,970 26,676 793 32,469 10,676 85,288 85,288 11 9

7 3

103 34 167 167 1,365 1,365 68 165 107 74 577 580 1,276 2,433 254 254 8,911 347 1,283 17,114 7,138 34,794 58,594 De con Cost PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Table c-1 Appendix C1, Page 6 Of 7 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Removal Packaging Transport Processing Disposal Cost Costs Costs Costs Costs 520 523 1,150 2,193 229 229 8,034 8,034 29,492 44 44 149 2,784 2,784 2,784 2,734 16 16 12,658 12,658 12,658 12,658 542 542 Other Total Costs Contin ency 575 449 314 381 971 4,068 121 6,104 15,467 8,064 36,514 36,765 8,397 2,658 2,252 5,731 24,108 717 29,344 9,648 77,850 77,850 11 8

93 31 153 153 681 681 60 103 67 111 111 245 467 49 49 81 64 1,710 67 54 187 864 26 1,296 3,284 1,712 9,295 13,916 481 376 319 811 5,119 152 6,231 2,049 15,538 15,538 2,524 2,524 2,524 20 7

31 2,555 317 317 9

32 15 14 Total Costs 681 684 1,895 2,661 278 278 657 518 9,744 881 435 1,108 4,931 147 7,400 18,751 9,776 58,843 80,173 8,878 3,028 2,571 6,542 29,227 869 35,575 11,697 98,887 98,887 17,916 17,916 17,916 12 10 113 37 183 18,099 1,607 1,607 69 180 118 81 l'.'RC Lie. Term.

Costs 0.000 0.000 304.732 17,916.027 17,916.027 17,916.027 17,916.027 Spent Fuel Site Management Restoration Costs Costs 656.698 512.878 435.322 1,107.924 4,931.309 147.205 5,994.188 1,955.206 15,740.724 15,740.724 3,877.715 3,028.446 2,570.515 6,542.142 29,227.476 869.226 85,574.869 11,697.032 93,387.420 93,387.420 12.349 9.645 7.868 2.768 113.296 37.252 183.178 183.178 1,606.609 1,606.609 0.775 0.775 68.648 180.304 117.636 81.013 631.002 634.342 1,395. 195 2,660.539 277.981 277.981 9,744.387 380.566 1,406.044 18,750.811 7,820.824 88,102.583 64, 127.618

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Decon Index Activity Description Cost 3e.4. 7 Utility Staff Cost 3e.4 Subtotal Period 3e Period-Depeodent Costs 3e.O TOTAL PERIOD Be COST PERIOD 3f-ISFSI Site Restoration Period Sf Direct Decommissioning Activities Period Sf Additional Costs 8f2.1 ISFSI Demolition and Site Restoration 8f.2.2 ISFSI Area Soil/ Sediment Control 8f2 Subtotal Period Sf Additional Costs Period Sf Collateral Costs 3fS.1 Small tool allowance 3f3 Subtotal Period Sf Collateral Costs Period Sf Period-Dependent Costs 3f4.1 Insurance 3f4.2 Property taxes 3f4.S Heavy equipment rental 3f4.4 Plant energy budget 3f4.5 Security Staff Cost 8f4.6 Utility Staff Cost 8f4 Subtotal Period Sf Period-Dependent Costs 3f0 TOTAL PERIOD Sf COST PERIOD 3 TOTALS TOTAL COST TO DECOMMISSION 11,057 TOTAL COST TO DECOMMISSION WITH 25.01% CONTINGENCY:

TOTAL NRC LICENSE TERMINATION COST IS 75.61% OR:

SPENT FUEL MANAGEMENT COST IS 18.82% OR:

NON-NUCLEAR DEMOLITION COST IS 5.57% OR:

TOTAL SCRAP METAL REMOVED:

TOTAL CRAFT LABOR REQUIREMENTS:

End Notes:

nla-indicates that this activity not charged as decommissioning expense.

a-indicates that this activity performed by decommissioning staff.

0 - indicates that this value is less than 0.5 but is non-zero.

a cell containing" - " indicates a zero value TLG Services, Inc.

Removal Cost 136 177 1,371 16 1,887 20 20 54 54 1,461 28,607 96,791 Table C-1 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Packaging Transport Processing Disposal Other Total Total Costs Costs Costs Costs Costs Contingency Costs 163 35 198 373 98 607 14 39S

. 995 S88 1,97S 27 297 1,695 4

20 27 801 1,715 24 24 28 32 11 65 11 2

14 69 15 83 108 82 198 184 S38 1,932 2,506 14 9,572 105,834 29,997 176,531 32,014 14,632 127,040 776,395 264,540 1,322,468

$1,322,468 thousands of 2011 dollars

$999,926 thousands of 2011 dollars

$248,912 thousands of 2011 dollars

$73,630 thousands of 2011 dollars 49,854 Tons 962,738 Man-hours PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Table C-1 Appendix C1, Page 7 Of 7 Diablo Canyon Unit 1 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

NRC Spent Fuel Site Off-Site LLRW NRC Spent Fuel Site Lie. Term.

Management Restoration Decon Removal Packaging Transport Processing Disposal Other Total Total Lie. Term.

Management Restoration Costs Costs Costs Cost Cost Costs Costs Costs Costs Costs Con tin ency Costs Costs Costs Costs 198 179 38 217 216.907 607 149 409 107 665 664.508 1,97S 19S 16 542 1,090 424 2,272 2,271.892 1,695 1,499 29 325 1,854 1,853. 758 20 18 4

22 21.847 1,715 1,517 29 329 1,876 1,875.605 24 21 26 25.960 24 21 26 25.960 32 30 35 34.608 65 59 12 71 7l.OS4 14 12 15 14.851 83 75 16 91 91.355 19S 59 118 S5 212 211.847 1,932 1,597 147 369 2,113 2, 11S.412 14,266 103,672 58,594 81,282 2,740 16 1S,200 116,005 32,802 196,045 18,220.760 118,696.627 64,127.618 999,926 248,912 73,630 12,091 105,841 35,008 16,000 175,188 851,006 289,275 1,484,407 1,129,947. 729 272,829.424 81,630.252

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index Activity Descri tion PERIOD la-Shutdown through Transition Period 1a Direct Decommissioning Activities 1a.1.1 1a.1.2 1a.1.3 1a.1.4 1a.1.5 1a.1.6 1a.1.7 1a.1.8 1a.1.9 1a.l.10 1a.l.ll 1a.1.12 1a.l.13 1a.l.14 1a.l.15 1a.l.16 Prepare preliminary decommissioning cost Notification of Cessation of Operations Remove fuel & source material Notification of Permanent Defueling Deactivate plant systems & process waste Prepare and submit PSDAR Review plant dwgs & specs.

Perform detailed rad survey Estimate by-product inventory End product description Detailed by-product inventory Define major work sequence Perform SER and EA Perform Site-Specific Cost Study Prepare/submit License Termination Plan Receive NRC approval of termination plan Activity Specifications 1a.1.17. 1 Plant & temporary facilities 1a.1.17.2 Plant systems 1a.1.17.3 NSSS Decontamination Flush 1a.1.17.4 Reactor internals 1a.1.17.5 Reactor vessel 1a.l.l7. 6 Biological shield 1a.1.17. 7 Steam generators 1a.1.17.8 Reinforced concrete 1a.1.17.9 Main Turbine 1a.1.17.10 Main Condensers 1a.1.17.11 Plant structures & buildings 1a.1.17.12 Waste management 1a.1.17.13 Facility & site closeout 1a.l.17 Total Planning & Site Preparations 1a.l.18 Prepare dismantling sequence 1a.1.19 Plant prep. & temp. svces 1a.l.20 Design water clean-up system 1a.1.21 Rigging/Cont. Cntrl Envlps/tooling/etc.

1a. l.22 Procure casks/liners & containers 1a.1 Subtotal Period 1a Activity Costs Period 1a Additional Costs 1a.2. 1 Spent Fuel Pool Isolation 1a.2.2 Disposal of Contaminated Tools & Equipment 1a.2 Subtotal Period 1a Additional Costs Period 1a Period-Dependent Costs 1a.4.1 Insurance 1a.4.2 Property taxes 1a.4.3 Health physics supplies 1a.4.4 Heavy equipment rental 1a.4.5 Disposal ofDAW generated 1a.4.6 Plant energy budget 1a.4.7 NRC Fees 1a.4.8 Emergency Planning Fees 1a.4.9 Spent Fuel Pool O&M 1a.4.10 ISFSI Operating Costs 1a.4.11 Severance Related Costs 1a.4.12 Spent Fuel Storage Canisters/Overpacks 1a.4.13 Security Staff Cost 1a.4.14 Utility Staff Cost 1a.4 Subtotal Period 1a Period-Dependent Costs 1a.O TOTAL PERIOD 1a COST PERIOD 1b-Decommissioning Preparations Period 1b Direct Decommissioning Activities Detailed Work Procedures 1b.1.1.1 Plant systems 1b.l.l.2 NSSS Decontamination Flush 1b.l.1.3 Reactor internals 1b.l.1.4 Remaining buildings 1b.l.1.5 CRD cooling assembly 1b.l.1.6 CRD housings & ICI tubes 1b.1.1. 7 Incore instrumentation 1b.1.1.8 Reactor vessel TLG Services, Inc.

Decon Cost Table C-2 Diablo Canyon Unit 2 DECON Deconunissioning Cost Estimate (Thousands of 2011 Dollars)

Removal Packaging Transport Cost Costs Costs 457 480 936 234 234 14 14 97 97 4

4 Off-Site LLRW Processing Disposal Costs Costs 3,145 3,145 45 45 Other Costs 82 126 289 63 63 82 472 195 315 258 310 262 31 447 409 31 196 101 25 25 196*

289 57 2,380 151 2,800 88 2,200 77 9,640 13,217 13,217 1,056 165 1,156 838 1,001 763 45 38,503 5,714 14,837 26,317 90,395 936 248 101 3,190 113,252 298 63 157 85 63 63 63 228 Total Contin ency 17 26 61 13 13 17 99 41 66 54 65 55 7

94 86 7

41 21 5

5 41 61 12 500 32 589 19 463 16 2,027 2,779 1,156 3,935 148 23 160 101 19 243 117 140 160 9

8,097 1,202 3,120 5,534 19,075 25,038 63 13 33 18 13 13 13 48 Total Costs 99 a

n/a a

a 152 350 a

76 76 99 571 236 381 312 375 317 38 541 495 38 238 122 30 30 238 350 69 2,880 183 3,389 107 2,663 94 11,668 15,996 4,632 20,628 1,204 189 617 580 83 1,399 955 1,142 924 54 46,600 6,916 17,957 31,851 110,470 142,766 360 76 190 103 76 76 76 276 NRC Spent Fuel Lie. Term.

Management Costs Costs 99 152 350 76 76 99 571 236 381 312 337 286 38 541 495 38 238 61 119 350 34 2,536 183 3,389 107 2,663 94 11,323 15,996 4,632 20,628 1,204 189 617 580 83 1,399 955 46,600 17,957 31,851 101,435 133,387 324 76 190 26 76 76 76 276 1,142 924 54 6,916 9,035 9,035 De con Cost Table C-2 Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 1 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site Removal Packaging Transport Processing Cost Costs Costs Costs 513 539 1,052 1,052 263 263 16 16 279 109 109 114 LLRW Disposal Costs 4,173 4,173 60 60 Other Costs 89 138 316 69 69 89 516 213 344 282 338 287 34 488 447 34 215 110 28 28 215 316 62 2,601 165 3,061 96 2,405 85 10,538 14,447 14,447 1,154 181 1,264 916 1,095 834 49 42,088 6,246 16,218 28,767 98,811 4,234 123,796 326 69 172 93 69 69 69 250 Total Contin ency 19 29 67 14 14 19 108 45 72 59 71 60 7

103 94 7

45 23 6

6 45 67 13 547 35 644 20 506 18 2,216 3,038 1,263 4,301 162 25 175 110 21 266 128 153 175 10 8,851 1,314 3,411 6,050 20,851 27,369 68 14 36 20 14 14 14 53 Total Costs 108 166 383 83 83 108 624 258 416 341 410 347 42 591 541 42 260 133 33 33 260 383 75 3,149 200 3,704 117 2,911 102 12,754 17,486 5,808 23,294 1,316 206 688 649 101 1,530 1,044 1,248 1,010 59 50,939 7,559 19,629 34,817 120,795 156,843 394 83 208 112 83 83 83 302 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 108.208 166.473 382.888 83.237 83.237 108.208 624.274 258.033 416.183 340.937 368.571 312.139 41.618 590.979 541.038 41.618 259.698 66.589 129.849 382.888 37.456 2,772.445 199.768 3,704.341 116.531 2,910.554 102.381 12,377.696 17,485.549 5,808.401 23,293.950 1,315.657 206.265 688.012 649.023 101.437 1,529.787 1,044.084 50,938.605 19,628.945 34,816.664 110,918.479 146,590.125 354.563 83.237 208.091 28.092 83.237 83.237 83.237 302.149 1,247.992 1,009.631 59.173 7,559.465 9,876.260 9,876.260 40.952 34.682 66.589 33.295 33.295 129.849 37.456 376.118 376.118 376.118 39.396 84.277

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index Activity Descri tion 1b.1.1.9 Facility closeout 1b.1.1.10 Missile shields 1b.1.1.11 Biological shield 1b.1.1.12 Steam generators 1b.1.1.13 Reinforced concrete 1b.1.1.14 Main Turbine 1b.1.1.15 Main Condensers 1 b. 1.1.16 Auxiliary building 1b.1.1.17 Reactor building 1b.1.1 Total 1b.1.2 1b.1 Decon primary loop Subtotal Period 1b Activity Costs Period 1b Additional Costs 1b.2.1 Site Characterization 1b.2.2 Hazardous Waste Management 1b.2.3 Mixed Waste Management 1b.2 Subtotal Period 1b Additional Costs Period 1b Collateral Costs 1b.3.1 Decon equipment 1b.3.2 DOC staff relocation expenses 1b.3.3 Process decommissioning water waste 1b.3.4 Process decommissioning chemical flush waste 1b.3.5 Small tool allowance 1b.3.6 Pipe cutting equipment 1b.3.7 Decon rig 1b.3 Subtotal Period 1b Collateral Costs Period 1b Period-Dependent Costs 1b.4.1 Decon supplies 1b.4.2 Insurance 1b.4.3 Property taxes 1b.4.4 Health physics supplies 1b.4.5 Heavy equipment rental 1b.4.6 Disposal ofDAW generated 1b.4. 7 Plant energy budget 1b.4.8 NRC Fees 1b.4.9 Emergency Planning Fees 1b.4.10 Spent Fuel Pool O&M 1b.4.11 ISFSI Operating Costs 1b.4.12 Severance Related Costs 1b.4.13 Spent Fuel Storage Canisters/Overpacks 1b.4.14 Security Staff Cost 1b.4.15 DOC Staff Cost 1b.4.16 Utility Staff Cost 1b.4 Subtotal Period 1b Period-Dependent Costs 1b.O TOTAL PERIOD 1b COST PERIOD 1 TOTALS PERIOD 2a-Large Component Removal Period 2a Direct Decommissioning Activities Nuclear Steam Supply System Removal 2a.1.1.1 Reactor Coolant Piping 2a.1.1.2 Pressurizer Quench Tank 2a.1.1.3 Reactor Coolant Pumps & Motors 2a.1.1.4 Pressurizer 2a.1.1.5 Steam Generators 2a.1.1.6 Retired Steam Generator Units 2a.l.l. 7 CRDMs!ICis/Service Structure Removal 2a.1.1.8 Reactor Vessel Internals 2a.l. 1. 9 Reactor Vessel 2a.1.1 Totals Removal of Major Equipment 2a.1.2 Main Turbine/Generator 2a.1.3 Main Condensers Cascading Costs from Clean Building Demolition 2a.1.4.1

• Reactor 2a.1.4.2 Auxiliary 2a.1.4.3 Containment Penetration Area 2a.1.4.4 Radwaste Storage 2a.1.4.5 Fuel Handling 2a.1.4 Totals Disposal of Plant Systems 2a.1.5.1 Auxiliary Steam TLG Services, Inc.

De con Cost 750 750 931 46 1,500 2,479 28 28 3,257 3,257 370 39 118 50 477 196 163 122 1,534 Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Removal Packaging Transport Processing Disposal Cost Costs Costs Costs Costs 1,100 1,103 249 238 487 1,589 21 63 84 92 66 256 321 2

324 88 6,210 6,298 26 26 6,323 Other Costs 75 28 75 289 63 98 98 172 172 2,092 2,092 2,038 204 270 2,512 1,415 1,415 523 82 1,147 237 497 378 22 2,018 3,086 7,357 4,664 13,050 33,062 39,080 2,525 341 425 9,514 152,332 354 35 126 70 4,206 112 3,064 5,180 13,148 202 668 1,194 719 73 91 193 2,270 76 52 8

103 448 3,368 2,496 262 14,919 2,387 24,042 40 6

185 114 1,922 1,878 37 1,413 742 6,336 1,342 189 1,443 750 12,807 12,597 444 10,366 2,651 42,589 278 278 556 Total Cantin ency 16 6

16 61 13 21 21 36 36 440 526 966 857 43 57 957 196 297 80 2,240 1

231 315 3,361 10 73 12 87 50 11 241 33 70 80 424 649 1,547 981 2,744 7,017 12,300 37,338 869 108 686 409 7,173 5,160 377 16,385 8,545 39,714 43 141 251 151 15 19 41 477 16 Total Costs 91 34 91 350 76 119 119 208 208 2,531 1,276 3,808 2,895 247 327 3,468 1,126 1,712 301 8,770 3

1,331 1,815 15,060 38 597 94 336 288 47 1,388 270 566 458 27 2,442 3,735 8,905 5,645 15,795 40,630 62,965 205,731 3,027 385 2,661 1,841 29,952 22,131 1,428 46,588 19,905 127,919 245 809 1,445 870 89 110 234 2,747 92 NRC Lie. Term.

Costs 46 34 91 350 38 187 187 2,055 1,276 3,332 2,895 247 327 3,468 1,126 1,712 301 8,770 3

1,331 1,815 15,060 38 597 94 336 288 47 1,388 270 2,442 8,905 5,645 15,795 35,844 57,703 191,090 3,027 385 2,661 1,841 29,952 22,131 1,428 46,588 19,905 127,919 1,445 870 89 110 234 2,747 Spent Fuel Management Costs 566 458 27 3,735 4,786 4,786 13,821 Decon Cost 843 843 1,046 52 1,685 2,785 32 32 3,659 3,659 415 44 132 57 535 220 183 137 1,723 Table C-2 Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 2 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site Removal Packaging Transport Processing Cost Costs Costs Costs 1,236 1,239 279 267 547 1,786 2,837 398 40 142 79 4,726 126 3,442 5,820 14,772 227 751 1,341 808 82 102 217 2,550 85 24 70 94 104 383 58 9

116 503 3,784 2,804 294 16,762 2,681 27,011 74 287 361 364 477 45 7

208 128 2,159 2,109 42 1,587 834 7,118 LLRW Disposal Costs 117 8,240 8,357 34 34 8,391 Other Costs 83 31 83 316 69 107 107 188 188 2,286 2,286 2,227 223 295 2,745 1,546 1,546 572 90 1,254 259 543 414 24 2,206 3,373 8,042 5,098 14,265 36,140 42,718 12,625 166,514 1,781 250 1,915 995 16,994 16,717 589 13,756 3,518 56,516 304 304 607 Total Cantin ency 17 7

17 67 14 23 23 39 39 481 575 1,056 937 47 62 1,046 214 325 87 2,449 1

253 345 3,674 11 80 13 95 55 12 264 36 76 87 5

464 709 1,691 1,072 3,000 7,670 13,445 40,814 950 118 750 448 7,841 5,641 412 17,911 9,341 43,411 47 154 274 165 17 21 14 522 17 Total Costs 100 37 100 383 83 130 130 227 227 2,767 1,418 4,185 3,164 270 357 3,791 1,260 1,871 354 11,049 4

1,489 2,030 18,056 42 652 102 375 322 58 1,517 295 619 501 29 2,670 4,083 9,734 6,170 17,265 44,435 70,466 227,309 3,648 468 3,262 2,209 36,039 27,271 1,683 53,944 22,634 151,159 274 904 1,615 973 99 123 261 3,072 102 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 49.942 37.456 99.884 382.888 41.618 204.512 204.512 2,246.654 1,417.957 3,661.760 3,163.981 269.888 357.204 3,791.073 1,259.503 1,871.463 353.736 11,048.723 3.638 1,488.717 2,030.068 18,055.848 42.450 652.422 102.285 374.754 321.844 57.809 1,517.213 295.182 2,669.510 9, 733.805 6,170.384 17,265.246 39,202.903 64,711.584 211,301.710 3,648.054 468.105 3,262.388 2,208.988 36,038.884 27,270.859 1,683.298 53,944.408 22,634.441 151, 159.426 1,615.444 973.164 99.233 123.183 261.179 3,072.203 618.867 500.666 29.343 4,082.750 5,231.627 5,231.627 15,107.887 49.942 41.618 129.849 129.849 22.724 22.724 520.378 523.230 523.230 899.348 273.815 904.190 102.435

Diablo Canyon Power Plant Decommissioning Cost Analysis Table C-2 Diablo Canyon Unit 2 DECON Deconunissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Activity Index Decon Removal Packaging Transport Processing Disposal Other Total 2a.1.5.2 Auxiliary Steam (RCA) 2a.1.5.3 Building Services (Non-Power Block) 2a.1.5.4 Condensate System 2a.1.5.5 Condensate System (Insulated) 2a.1.5.6 Containment Spray 2a.1.5. 7 Extraction Steam & Heater Drip 2a.1.5.8 Feedwater System 2a.1.5.9 Feedwater System (Insulated) 2a.1.5.10 Feed water System (RCA Insulated) 2a.1.5.ll Feedwater System (RCA) 2a.1.5.12 NSSS Sampling 2a.1.5.13 NSSS Sampling (Insulated) 2a.1.5.14 Nitrogen & Hydrogen 2a.1.5.15 Nitrogen & Hydrogen (Insulated) 2a.1.5.16 Nitrogen & Hydrogen (RCA Insulated) 2a.1.5.17 Nitrogen & Hydrogen (RCA) 2a.1.5.18 Oily Water Separator & TB Sump 2a.1.5.19 Saltwater System 2a.1.5.20 Turbine Steam Supply 2a. 1.5.21 Turbine Steam Supply (RCA) 2a.1.5.22 Turbine and Generator 2a.1.5.23 Turbine and Generator (Insulated) 2a.1.5 Totals 2a.1.6 Scaffolding in support of decommissioning 2a.1 Subtotal Period 2a Activity Costs Period 2a Additional Costs 2a.2.1 Retired Reactor Head 2a.2 Subtotal Period 2a Additional Costs Period 2a Collateral Costs 2a.3. 1 Process decommissioning water waste 2a.3.2 Process decommissioning chemical flush waste 2a.3.3 Small tool allowance 2a.3.4 Spent Fuel Transfer - Pool to ISFSI 2a.3 Subtotal Period 2a Collateral Costs Period 2a Period-Dependent Costs 2a.4.1 Decon supplies 2a.4.2 Insurance 2a.4.3 Property taxes 2a.4.4 Health physics supplies 2a.4.5 Heavy equipment rental 2a.4.6 Disposal ofDAW generated 2a.4. 7 Plant energy budget 2a.4.8 NRC Fees 2a.4.9 Emergency Planning Fees 2a.4.10 Spent Fuel Pool O&M 2a.4.ll ISFSI Operating Costs 2a.4.12 Severance Related Costs 2a.4.13 Spent Fuel Storage Canisters/Overpacks 2a. 4.14 Security Staff Cost 2a.4.15 DOCStaffCost 2a.4.16 Utility Staff Cost 2a.4 Subtotal Period 2a Period-Dependent Costs 2a.O TOTAL PERIOD 2a COST PERIOD 2b-Site Decontamination Period 2b Direct Decommissioning Activities Disposal of Plant Systems 2b.l.l.l 2b.1.1.2 2b.1.1.3 2b.1.1.4 2b.1.1.5 2b.l.l.6 2b.1.1.7 2b.1.1.8 2b.1.1.9 2b.1.1.10 2b.1.1.11 2b. l.l.l2 2b.l.l.l3 2b.l.l.l4 2b. 1.1.15 2b.l.l.i6 2b. 1.1.17 2b.1.1.18 Capital Additions 85-2002 (Clean)

Capital Additions 85-2002 (contaminated)

Chemical & Volume Control Chemical & Volume Control (Insulated)

Component Cooling Water Component Cooling Water (RCA)

Compressed Air Compressed Air (Insulated)

Compressed Air (RCA Insulated)

Compressed Air (RCA)

Diesel Engine-Generator Diesel Engine-Generator (Insulated)

Electrical (Clean)

Electrical (Contaminated)

Electrical (RCA)

Fire Protection Gaseous Radwaste HV AC (Clean Insulated)

TLG Services, Inc.

Cost Cost Costs Costs Costs Costs Costs Cantin enc 1,534 85 85 92 92 1,711 809 294 141 7

619 274 235 230 67 162 119 6

159 47 19 1

5 103 29 181 762 878 81 24 4,226 4,785 25,300 315 315 1,968 3,373 5,341 30,956 450 483 1,066 432 190 595 118 6

29 531 137 3

3,115 360 1,875 364 133 40 32 161 42 1

11 11 345 614 21 24,677 225 225 40 40 110 110 25,052 61 172 47 191 4

69 44 148 20 9

51 15 1

3 0

0 3

3 117 201 11 6,548 179 179 123 123 31 31 6,881 24 58 13 66 19 18 53 6

319 1,719 497 26 100 10 5

92 102 3,961 6,830 251 49,671 1,557 1,557 165 556 2,279 165 2,279 349 768 268 1,776 724 1,156 1,234 72 494 3,418 23,983 26,130 37,794 349 97,815 51,741 100,650 797 1,966 438 2,245 33 629 613 1,792 217 168 1

130 58 718 48 14 34 225 12 93 20 4

0 4

71 48 38 160 1,769 17 5

3,653 1,770 45,798 615 615 149 66 479 694 32 108 38 690 709 144 373 102 162 259 15 104 719 5,044 5,495 7,948 21,942 69,049 95 462 1,666 520 40 1,036 25 1

23 420 29 1

655 351 394 788 127 8

Total Costs 670 8

749 332 2,885 279 82 196 897 46 364 78 23 1

15 280 192 219 922 7,070 98 29 15,525 6,838 154,083 2,576 2,576 562 381 2,758 3,701 124 875 305 2,658 4,082 635 2,149 826 1,318 1,493 88 598 4,137 29,027 31,625 45,742 125,681 286,040 544 1,827 5,736 1,744 230 4,133 143 8

89 1,667 165 4

3,770 1,386 2,269 3,145 502 48 NRC Spent Fuel Lie. Term.

Management Costs Costs 670 2,885 897 46 364 78 15 280 192 7,070 12,496 6,838 150,001 2,576 2,576 562 343 905 124 875 275 2,658 4,082 635 2,149 826 598 29,027 31,625 45,742 118,615 272,096 1,827 5,736 1,744 4,133 89 1,667 1,386 3,145 502 2,758 2,758 1,318 1,493 88 4,137 7,035 9,793 Table C-2 Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 3 of 8 DECON Deconunissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Decon Removal Packaging Transport Processing Disposal Other Total Cost Cost Costs Costs Costs Costs Costs Cantin ency 1,723 95 95 103 103 1,922 908 330 159 8

695 308 264 259 76 182 134 6

179 53 22 1

6 116 33 203 856 987 91 27 4,748 5,376 28,424 354 354 2,211 3,790 6,001 34,779 505 543 1,198 486 213 669 133 7

33 596 154 3

3,500 405 2,106 409 149 45 36 181 47 2

10 1

1 13 12 388 690 23 27,725 253 253 45 45 124 124 28,146 68 193 53 215 4

77 49 167 22 11 57 16 1

3 0

3 3

131 226 12 7,357 201 201 139 139 35 35 7,731 26 65 15 74 21 20 59 7

424 2,282 659 35 133 13 122 135 5,256 9,064 333 65,913 2,066 2,066 218 607 2,491 218 2,491 463 839 292 1,941 792 1,263 1,348 79 540 3,736 26,216 28,563 41,312 463 106,922 68,661 110,020 1,058 2,608 581 2,979 44 835 814 2,377 288 184 2

142 63 785 53 15 37 246 13 101 22 4

0 4

77 52 42 175 1,934 19 5

3,993 1,935 50,062 672 672 163 72 524 759 35 118 41 754 775 158 408 111 177 284 17 114 786 5,513 6,007 8,688 23,985 75,477 103 505 1,821 569 44 1,133 27 1

25 459 31 1

716 384 431 861 138 9

Total Costs 812 9

837 371 3,569 312 91 219 1,102 57 426 89 26 1

17 331 235 244 1,031 8,695 110 32 18,721 7,680 181,811 3,192 3,192 660 426 3,015 4,101 138 957 333 2,965 4,565 779 2,349 903 1,440 1,632 96 654 4,522 31,729 34,569 50,000 137,633 326,737 609 2,201 6,794 2,033 257 5,069 160 8

106 1,988 185 4

4,216 1,672 2,537 3,873 605 54 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 812.448 3,569.080 1,101.750 57.196 426.178 89.043 17.414 330.871 235.360 8,695.254 15,334.594 7,679.751 177,245.974 3,191.889 3,191.889 660.133 383.603 1,043.736 138.372 956.629 300.073 2,965.426 4,565.095 779.486 2,349.166 902.824 653.756 31,728.978 34,569.333 50,000.176 129,909.312 311,390.911 2,200.817 6,794.086 2,033.240 5,068.829 106.474 1,987.617 1,671.652 3,873.492 604.505 3,014.656 3,014.656 1,440.496 1,632.006 95.650 4,521.988 7,690.139 10,704.796 9.215 837.179 371.277 311.524 91.148 218.874 26.276 1.338 244.452 1,031.387 109.545 32.204 3,386.854 4,564.858 42.623 42.623 33.341 33.341 4,640.822 608.647 257.001 160.3 15 8.410 185.015 4.040 4,216.081 2,537.299 53.980

Diablo Canyon Power Plant Decommissioning Cost Analysis Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Activity Index Decon Removal Packaging Transport Processing Disposal Other Total Activit 2b.1.L19 HVAC (Clean) 2b.l.l.20 HVAC (Contaminated Insulated) 2b.l.l.21 HVAC (Contaminated) 2b.l.l.22 Liquid Radwaste 2b.l.l.23 Liquid Radwaste (Insulated) 2b.l.l.24 Lube Oil Distribution & Purification 2b.l.l.25 Make-up Water 2b.l.l.26 Make-up Water (Insulated) 2b.l.l.27 Make-up Water (RCA Insulated) 2b.l.l.28 Make-up Water (RCA) 2b.l.l.29 Mechanical Department Equipment 2b.l.l. 30 Miscellaneous Reactor Coolant 2b.1.1.31 Nuclear Steam Supply Sampling 2b.1.1.32 Nuclear Steam Supply Sampling (Insulated 2b.1.1.33 Residual Heat Removal 2b.l.l. 34 Safety Injection Disposal of Plant Systems (continued) 2b.1.1.35 Safety Injection (Insulated) 2b.l.l. 36 Safety Injection (RCA Insulated) 2b.l. 1. 37 Safety Injection (RCA) 2b.1.1.38 Service Cooling Water 2b.1.1.39 Service Cooling Water (RCA)

.2b.l.1.40 Sewer System Expansion 2b. L1 Totals 2b.1.2 Scaffolding in support of decommissioning Decontamination of Site Buildings 2b.l.3.1

• Reactor 2b.l.3.2 Auxiliary 2b.1.3.3 Capital Additions 85-2004 2b.l.3.4 Containment Penetration Area 2b.l.3.5 Radwaste Storage 2b.l.3 Totals 2b.l Subtotal Period 2b Activity Costs Period 2b Collateral Costs 2b.3.1 Process decommissioning water waste 2b.3.2 Process decommissioning chemical flush waste 2b.3.3 Small tool allowance 2b.3.4 Spent Fuel Transfer-P ool to ISFSI 2b.3 Subtotal Period 2b Collateral Costs Period 2b Period-Dependent Costs 2b.4.1 Decon supplies 2b.4.2 Insurance 2b.4.3 Property taxes 2b.4.4 Health physics supplies 2b.4.5 Heavy equipment rental 2b.4.6 Disposal ofDAW generated 2b.4. 7 Plant energy budget 2b.4.8 NRC Fees 2b.4.9 Emergency Planning Fees 2b.4.10 Spent Fuel Pool O&M 2b.4.11 Liquid Radwaste Processing Equipment/Services 2b.4.12 ISFSI Operating Costs 2b.4.13 Severance Related Costs 2b.4.14 Spent Fuel Storage Canisters/Overpacks 2b.4.15 Security Staff Cost 2b.4.16 DOC Staff Cost 2b.4.17 Utility Staff Cost 2b.4 Subtotal Period 2b Period-Dependent Costs 2b.O TOTAL PERIOD 2b COST PERIOD 2c -Spent fuel delay prior to SFP decon Period 2c Direct Decommissioning Activities Period 2c Collateral Costs 2c.3.1 Spent F uel Transfer-Pool to ISFSI 2c.3 Subtotal Period 2c Collateral Costs Period 2c Period-Dependent Costs 2c.4.1 Insurance 2c.4.2 Property taxes 2c.4.3 Health physics supplies 2c.4.4 Disposal of DAW generated 2c.4. 5 Plant energy budget 2c.4.6 NRC Fees 2c.4. 7 Emergency Planning Fees 2c.4.8 Spent Fuel Transfer-Pool or ISFSI to DOE TLG Services, Inc.

Cost Cost Costs Costs Costs Costs Costs Cantin enc 362 29 21 307 1,821 959 1,325 423 327 8

3,042 4,863 143 3

145 1,456 1,456 6,464 428 232 1,033 447 44 126 244 24 32 164 1

141 21 9

305 124 5

38 322 138 37 47 13,893 5,982 2,483 739 168 213 62 3,666 23,541 445 445 2,764 4,951 7,715 31,701 2,326 37 185 74 5

7 39 17 2

1 162 21 1

8 76 1,400 26 1,120 65 10 26 4

1,224 2,650 69 90 160 127 127 2,936 68 15 76 25 1

2 11 5

1 0

54 7

24 485 14 5,645 98 20 28 9

5,801 6,300 213 369 582 36 36 6,918 19 506 2,563 862 45 67 378 158 21 9

1,845 242 10 92 830 96 16,454 313 26,011 927 151 379 59 27,526 44,293 284 687 7,172 971 7,172 401 1,136 396 2,074 1,072 1,710 1,825 463 107 7,908 10,760 35,487 37,206 53,628 401 153,771 45,666 160,943 216 7,549 7,549 3,088 1,076 1,504 2,000 4,651 13,947 90 267 1,302 728 53 26 51 5

36 198 0

123 15 7

1,003 133 6

48 420 29 49 10 11,238 2,213 12,003 1,542 414 446 51 14,457 27,908 254 333 94 1,508 2,189 510 159 55 969 1,041 166 436 150 240 384 97 22 1,663 2,263 7,463 7,824 11,278 34,722 64,819 1,588 1,588 433 151 815 89 316 280 652 2,933 Total Costs 518 1,057 5,159 2,498 177 152 296 29 144 790 1

464 61 26 3,675 527 23 189 1,672 167 195 57 45,291 8,548 48,221 4,695 1,187 1,420 194 55,716 109,554 964 1,482 539 8,681 11,665 1,966 1,295 451 3,733 5,992 730 2,510 1,222 1,950 2,209 561 129 9,571 13,023 42,950 45,030 64,905 198,227 319,447 9,137 '

9,137 3,521 1,227 3,142 392 1,820 2,281 5,303 16,880 NRC Spent Fuel Lie. Term.

Management Costs Costs 1,057 5,159 2,498 177 144 790 464 61 26 3,675 527 23 189 1,672 195 36,887 8,548 48,221 4,695 1,187 1,420 194 55,716 101,151 964 1,482 539 2,985 1,966 1,295 451 3,733 5,992 730 2,510 1,222 561 9,571 42,950 45,030 64,905 180,916 285,051 3,521 1,227 3,142 392 1,820 2,281 8,681 8,681 1,950 2,209 129 13,023 17,311 25,992 9,137 9,137 5,303 16,880 Table C-2 Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 4 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Decon Removal Packaging Transport Processing Disposal Other Total Cost Cost Costs Costs Costs Costs Costs Cantin ency 406 33 23 345 2,046 1,077 1,488 476 367 9

3,418 5,463 160 3

163 1,635 1,635 7,262 481 260 1,161 503 49 141 275 27 36 184 1

159 24 10 343 139 6

43 362 155 42 53 15,609 6,720 2,790 830 189 240 70 4,119 26,448 500 500 3,105 5,562 8,668 35,616 2,614 41 208 83 43 19 3

1 181 24 1

10 86 11 1,572 29 1,258 73 11 29 4

1,376 2,977 78 102 179 143 143 3,299 77 17 85 29 2

13 5

1 0

61 8

28 545 16 6,342 110 22 32 11 6,517 7,078 240 415 654 40 40 7,772 22 672 3,401 1,143 60 89 502 209 28 12 2,448 321 14 122 1,102 128 21,834 416 34,516 1,230 201 503 78 36,527 58,777 377 911 7,840 1,289 7,840 533 1,241 433 2,267 1,172 1,869 1,995 507 117 8,644 11,762 38,790 40,669 58,620 533 168,087 60,599 175,927 286 8,252 8,252 3,376 1,177 1,644 2,187 5,083 15,246 98 292 1,423 796 58 29 56 5

39 216 0

134 17 7

1,096 145 52 459 32 53 11 12,284 2,419 13,121 1,686 453 488 56 15,803 30,506 278 364 102 1,649 2,393 558 174 61 1,059 1,138 181 477 164 262 420 107 25 1,818 2,474 8,158 8,553 12,328 37,954 70,853 1,735 1,735 473 165 891 97 346 307 713 3,206 Total Costs 580 1,282 6,278 2,960 207 170 331 32 174 958 2

550 72 31 4,474 637 27 230 2,035 187 237 64 53,891 9,600 59,105 5,416 1,352 1,659 228 67,759 131,250 1,133 1,795 603 9,489 13,019 2,193 1,415 493 4,164 6,700 897 2,744 1,336 2,131 2,415 613 142 10,462 14,235 46,948 49,222 70,948 217,060 361,328 9,987 9,987 3,849 1,342 3,505 482 1,990 2,493 5,796 18,452 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 1,282.092 6,277.763 2,960.001 207.001 174.208 958.451 549.544 72.104 30.902 4,474.301 637.181 27.353 230.180 2,035.184 236.764 44,493.743 9,599.688 59,104.509 5,416.357 1,351.844 1,658.544 227.953 67,759.208 121,852.639 1,133.005 1,794.505 602.649 3,530.159 2,192.923 1,415.486 493.340 4,164.491 6,700.298 897.068 2,744.186 1,335.873 613.180 10,461.622 46,948.131 49,222. 118 70,948.082 198,136.799 323,519.598 3,849.216 1,341.568 3,504.900 481.816 1,989.980 2,493.090 9,488.853 9,488.853 2,131.445 2,414.815 141.529 14,235.319 18,923.108 28,411.961 9,987.132 9,987.132 5,796.163 18,451.852 579.786 170.404 330.765 32.093 1.639 187.219 64.201 9,396.894 9,396.894 9,396.894

Diablo Canyon Power Plant Decommissioning Cost Analysis Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Activity Index Decon Removal Packaging Transport Processing Disposal Other Costs Activity Descri tion Cost Cost Costs Costs Period 2c Period-Dependent Costs (continued) 2c.4.9 Spent Fuel Pool O&M 2c.4.10 Liquid Radwaste Processing Equipment/Services 2c.4.11 ISFSI Operating Costs 2c. 4.12 Spent Fuel Storage Canisters/Overpacks 2c.4.13 Security Staff Cost 2c.4.14 Utility Staff Cost 2c.4 Subtotal Period 2c Period-Dependent Costs 2,326 68 19 2c.O TOTAL PERIOD 2c COST 2,326 68 19 PERIOD 2d-Decontamination Following Wet Fuel Storage Period 2d Direct Decommissioning Activities 2d.1.1 Remove spent fuel racks Disposal of Plant Systems 2d.1.2.1 Electrical (Contaminated) - FHB 2d.1.2.2 Electrical (RCA)-FHB 2d.1.2.3 Fire Protection (RCA) 2d.1.2.4 HVAC (Contaminated)- FHB 2d.1.2.5 Spent Fuel Pit Cooling 2d.1.2.6 Spent Fuel Pit Cooling-FHB 2d. 1.2 Totals Decontamination of Site Buildings 2d.l. 3.1 Fuel Handling 2d.1.3 Totals 2d.1.4 Scaffolding in support of decommissioning 2d.1 Subtotal Period 2d Activity Costs Period 2d Additional Costs 2d.2.1 License Termination Survey Planning 2d.2 Subtotal Period 2d Additional Costs Period 2d Collateral Costs 2d. 3.1 Process decommissioning water waste 2d.3.2 Process decommissioning chemical flush waste 2d.3.3 Small tool allowance 2d.3.4 Decommissioning Equipment Disposition 2d.3 Subtotal Period 2d Collateral Costs Period 2d Period-Dependent Costs 2d.4.1 Decon supplies 2d.4.2 Insurance 2d.4.3 Property taxes 2d.4.4 Health physics supplies 2d.4.5 Heavy equipment rental 2d.4.6 Disposal ofDAW generated 2d.4. 7 Plant energy budget 2d.4.8 NRC Fees 2d.4.9 Emergency Planning Fees 2d.4.10 Spent Fuel Transfer - Pool or ISFSI to DOE 2d.4.11 Liquid Radwaste Processing Equipment/Servic~s 2d.4.12 ISFSI Operating Costs 2d.4.13 Severance Related Costs 2d. 4.14 Security Staff Cost 2d.4.15 DOC Staff Cost 2d.4.16 Utility Staff Cost 2d.4 Subtotal Period 2d Period-Dependent Costs 2d.O TOTAL PERIOD 2d COST PERIOD 2f-License Termination Period 2f Direct Decommissioning Activities 2f.1.1 ORISE confumatory survey 2f.L2 Terminate license 2f.1 Subtotal Period 2f Activity Costs Period 2f Additional Costs 2f.2.1 License Termination Survey 2f.2 Subtotal Period 2f Additional Costs Period 2f Collateral Costs 2£.3.1 DOC staff relocation expenses 2f.3 Subtotal Period 2f Collateral Costs Period 2fPeriod-Dependent Costs 2£.4.1 Insurance 2£.4.2 Property taxes TLG Services, Inc.

585 811 811 1,396 37 37 209 209 1,642 56 111 690 264 231 94 130 1,520 859 859 1,196 3,632 79 79 445 953 1,398 5,108 174 78 67 39 65 71 328 63 63 570 20 155 175 45 45 790 36 31 18 16 21 23 112 41 41 191 62 54 115 13 13 319 Costs Costs 4,964 315 291 11,323 96,501 42,556 216 182,217 216 189,766 1,207 115 1,042 613 542 712 772 3,795 637 637 63 5,702 82 1,828 1,910 143 143 7,755 800 800 219 76 213 175 165 1,216 178 21 12,313 1,035 4,884 7,532 28,027 28,826 178 178 14,399 14,399 1,415 1,415 319 125 Total Contin ency 1,044 66 61 2,381 20,294 8,950 38,467 40,054 885 81 624 321 280 296 331 1,933 1,110 1,110 443 4,370 336 336 70 17 674 760 73 31 11 156 200 59 45 24 23 256 38 4

2,589 218 1,027 1,584 6,338 11,805 75 75 6,056 6,056 297 297 45 17 Total Costs 6,007 381 352 13,704 116,795 51,506 223,313 232,449 2,943 317 2,464 1,283 1,107 1,189 1,327 7,688 3,521 3,521 1,710 15,862 1,136 1,136 271 96 2,710 3,076 282 249 87 601 1,153 260 258 199 188 1,472 216 25 14,902 1,253 5,911 9,117 36,173 56,246 253 a

253 20,456 20,456 1,712 1,712 364 142 NRC Lie. Term.

Costs 381 116,795 51,506 181,066 181,066 2,943 317 2,464 1,283 1,107 1,189 1,327 7,688 3,521 3,521 1,710 15,862 1,136 1,136 271 96 2,710 3,076 282 249 87 601 1,153 260 258 199 216 14,902 1,253 5,911 9,117 34,488 54,561 253 253 20,456 20,456 1,712 1,712 364 142 Spent Fuel Management Costs 6,007 352 13,704 42,246 51,383 188 1,472 25 1,685 1,685 Dec on Cost 658 911 911 1,569 41 41 235 235 1,845 Removal Packaging Transport Cost Costs Costs 2,614 2,614 63 124 775 297 259 106 146 1,708 965 965 1,344 4,080 89 89 500 1,070 1,570 5,739 77 77 195 9

87 76 44 73 79 369 71 71 640 22 174 196 51 51 888 22 22 40 4

35 20 18 24 26 126 46 46 215 69 61 130 14 14 359 Table C-2

• Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 5 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site Processing Costs LLRW Disposal Costs Other Costs 5,426 344 318 12,377 105,485 46,518 286 199,181 286 207,433 1,602 152 1,383 813 719 945 1,024 5,037 845 845 83 7,566 109 2,425 2,534 190 190 10,290 874 874 239 83 233 191 180 1,330 195 23 13,459 1,131 5,339 8,234 30,636 31,510 195 195 15,740 15,740 1,546 1,546 349 136 Total Contin ency 1,141 72 67 2,603 22,184 9,783 42,048 43,783 967 88 682 351 306 324 362 2,113 1,213 1,213 484 4,777 368 368 77 18 736 831 80 33 12 170 219 65 49 27 25 280 41 5

2,830 238 1,123 1,732 6,928 12,905 82 82 6,620 6,620 325 325 49 19 Total Costs 6,567 417 385 14,980 127,669 56,301 244,227 254,214 3,525 378 2,962 1,557 1,346 1,472 1,637 9,351 4,052 4,052 1,920 18,848 1,242 1,242 319 107 3,396 3,821 315 272 95 670 1,289 320 282 218 205 1,609 236 27 16,289 1,369 6,462 9,965 39,624 63,536 276 276 22,360 22,360 1,871 1,871 398 155 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 416.872 127,668.811 56,301.116 198,047.369 198,047.369 3,525.099 377.567 2,961.701 1,556.660 1,345.914 1,472.077 1,637.398 9,351.316 4,051.558 4,051.558 1,919.937 18,847.910 1,241.847 1,241.847 318.635 106.849 3,395.953 3,821.438 315.000 272.396 94.938 670.159 1,289.404 319.856 281.648 217.637 236.001 16,289.456 1,369.187 6,461.779 9,965.270 37,782.731 61,693.926 276.497 276.497 22,360.316 22,360.316 1,871.463 1,871.463 397.967 155.405 6,566.748 384.868 14,979.906 46,179.536 56,166.668 205.088 1,609.322 27.236 1,841.646 1,841.646

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index 2£.4.3 2f.4.4 2£.4.5 2f.4.6 2£.4.7 2£.4.8 2£.4.9 2£.4.10 2£.4.11 2£.4.12 2£.4 2£.0 Activity Descri tion Health physics supplies Disposal ofDAW generated Plant energy budget NRC Fees Emergency Planning Fees Spent Fuel Transfer *Pool or ISFSI to DOE ISFSI Operating Costs Security Staff Cost DOC Staff Cost Utility Staff Cost Subtotal Period 2£Period-Dependent Costs TOTAL PERIOD 2f COST PERIOD 2 TOTALS PERIOD 3b - Site Restoration Period 3b Direct Decommissioning Activities Demolition of Remaining Site Buildings 3b.l.l.l

• Reactor 3b.l.l.2 Administration 3b.l.l.3 Auxiliary 3b.l.l.4 Capital Additions 85-2004 3b.l.l. 5 Chemical Storage 3b.l.l. 6 Chlorination 3b.l.l. 7 Circulating Water Tunnels 3b.l.l.8 Cold Machine Shop 3b.l.l.9 Communication 3b.l.l.10 Condensate Polishing/Technical Support 3b.l.l.ll Containment Penetration Area 3b.l.l. 12 Discharge Structure 3b.l.l. 13 Fabrication Shop 3b.l.l.l4 Fire Pump House 3b.l.l.l5 Hazardous Waste Storage Facility 3b.l.l.l6 Intake Structure 3b.l.l.l7 Maintenance Shop 3b.l.l.l8 Miscellaneous Structures 3b.l. l.l9 NPO Permanent Warehouse 3b.l.l.20 Ponds 3b.l.l.21 Portable Fire Pump & Fuel Cart 3b.l.l.22 Pretreatment 3b.l.l.23 Radwaste Storage 3b.l.l.24 Radwaste Storage Facility (Additional) 3b.l.l.25 RotorWarehouse 3b.l.l.26 Security 3b.l.l.27 Security Buildings (additional)

Demolition of Remaining Site Buildings (continued) 3b.l.l.28 Simulator 3b.l.l.29 Steam Generator Storage Facility 3b.l.l.30 Telephone Terminal 3b.l.l.31 Turbine 3b.l.l.32 Turbine Pedestal 3b.l.l.33 Vehicle Maintenance 3b.l.l.34 Waste Water Holding & Treatment Facility 3b.l.l.35 Fuel Handling 3b.l.l Totals Site Closeout Activities 3b.l.2 Grade & landscape site 3b.l.3 Final report to NRC 3b.l Subtotal Period 3b Activity Costs Period 3b Additional Costs 3b.2.1 Backfill Structures & Remove Concrete Rubble 3b.2.2 3b.2.3 3b.2.4 3b.2.5 3b.2.6 3b.2.7 3b.2 Breakwater Demolition and Removal Cofferdam Construction and Teardown Concrete Crushing Disposal of Galbestos Siding Disposition of Mobile Barriers Soil/ Sediment Control Plant Area Subtotal Period 3b Additional Costs Period Sb Collateral Costs 3b.3.1 Small tool allowance 3b.3 Subtotal Period 3b Collateral Costs Period 3b Period-Dependent Costs 3b.4.1 Insurance 3b.4.2 Property taxes 3b.4.3 Heavy equipment rental TLG Services, Inc.

Dec on Cost 9,816 Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Removal Packaging Transport Cost Costs Costs 834 9

2 834 834 Off-Site Processing Costs LLRW Disposal Costs 27 27 27 Other Costs 174 312 269 1,130 34 1,694 4,689 5,150 13,897 29,889 70,926 28,855 14,141 105,405 510,074 6,798 1,067 6,587 4,359 4

9 1,153 396 4

870 686 937 120 5

39 5,309 365 64 1,367 1

10 1,777 49 847 344 53 413 909 3

5,538 1,318 34 23 1,858 43,321 2,758 46,079 35,142 41,893 478 9,113 1,318 1,052 88,996 1,107 1,107 7,347 98 98 5

317 321 525 410 Total Contin ency 292 11 37 44 38 238 7

356 986 1,083 3, 154 9,583 195,310 1,430 224 1,385 917 2

243 83 1

183 144 197 25 1

8 1,116 77 13 287 0

0 2

374 10 178 72 11 87 191 1

1,165 277 7

5 391 9,110 580 21 9,711 7,390 14,684 101 1,917 67 277 221 24,657 233 233 74 57 1,545 Total Costs 1,127 49 211 356 307 1,368 41 2,050 5,675 6,233 17,924 40,345 934,527 8,228 1,291 7,972 5,276 5

11 1,396 479 5

1,053 830 1,134 145 6

48 6,425 442 77 1,654 12 2,150 60 1,025 417 65 500 1,100 3

6,703 1,596 41 27 2.248 52,431 3,338 119 55,888 42,532 56,577 579 11,035 383 1,595 1,273 113,975 1,340 1,340 598 467 8,892 NRC Lie. Term.

Costs 1,127 49 211 356 2,050 5,675 6,233 16,208 38,629 831,404 119 119 Spent Fuel Management Costs 307 1,368 41 1,716 1,716 90,569 598 467 Dec on Cost 11,029 Removal Packaging Transport Cost Costs Costs 937 937 937 79,685 7,637 1,198 7,400 4,898 5

11 1,296 445 5

978 771 1,053 135 6

44 5,964 410 71 1,536 11 1,996 55 952 387 60 464 1,022 3

6,222 1,481 38 25 2,087 48,671 3,098 51,769 39,482 47,067 537 10,238 1,481 1,182 99,987 1,244 1,244 8,255 10 10 10 32,419 15,887 PG&E Letter DCL-15-044 Table C-2 Diablo Canyon Unit 2 Document P01-1648-001, Rev. 0 Appendix C2, Page 6 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site Processing Costs LLRW Disposal Costs 36 36 36 Other Costs 190 341 294 1,235 37 1,852 5,126 5,630 15,191 32,672 139,872 557,562 107 107 5

346 351 574 448 Total Contin ency 320 12 40 48 41 260 8

389 1,078 1,184 3,448 10,475 Total Costs 1,257 60 231 389 336 1,495 45 2,241 6,204 6,814 19,625 44,133 213,493 1,049,947 1,563 245 1,514 1,002 1

265 91 200 158 215 28 1,220 84 15 314 408 11 195 79 12 95 209 1

1,273 303 8

5 427 9,959 634 23 10,615 8,078 16,051 110 2,096 73 303 242 26,952 254 254 80 63 1,689 9,200 1,444 8,914 5,900 6

13 1,561 536 6

1,178 929 1,269 162 7

53 7,185 494 86 1,850 3

2 13 2,405 67 1,147 466 72 559 1,231 4

7,496 1,784 46 31 2,514 58,630 3,732 130 62,492 47,560 63,117 647 12,340 419 1,784 1,424 127,291 1,498 1,498 654 511 9,944 NRC Lie. Term.

Costs 1,256.942 60.457 230.516 389.302 2,241.228 6,203.845 6,813.606 17,749.268 42,257.544 936,909.347 129.849 129.849 Spent Fuel Site Management Restoration Costs Costs 335.710 1,495.147 44.582 1,875.440 1,875.440 99,000.511 654.119 510.858 14,037.716 9,200.205 1,443.699 8,914.087 5,900.016 6.032 12.856 1,561.040 535.952 5.772 1,177.551 928.621 1,268.530 162.465 6.873 53.315 7,184.542 493.859 85.947 1,849.923 2.743 1.747 13.318 2,404.559 66.568 1,146.692 465.952 72.282 559.297 1,230.566 3.623 7,495.643 1,784.368 46.197 30.630 2,514.130 58,629.600 3,732.294 62,361.895 47,560.443 63,117.319 647.317 12,339.746 418.806 1,783.753 1,423.755 127,291.139 1,498.055 1,498.055 9,943.649

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Index 3b.4.4 3b.4.5 3b.4.6 3b.4.7 3b.4.8 3b.4.9 3b.4.10 3b.4.11 3b.4 3b.O Activity Descri tion Plant energy budget NRC ISFSI Fees Emergency Planning Fees Spent Fuel Transfer - Pool or ISFSI to DOE ISFSI Operating Costs Security Staff Cost DOC Staff Cost Utility Staff Cost Subtotal Period 3b Period-Dependent Costs TOTAL PERIOD 3b COST PERIOD 3c - Fuel Storage Operations/Shipping Period 3c Direct Decommissioning Activities Period 3c Period-Dependent Costs 3c.4.1 Insurance 3c.4.2 Property taxes 3c.4.3 Plant energy budget 3c.4.4 NRC ISFSI Fees 3c.4.5 Emergency Planning Fees 3c.4.6 Spent Fuel Transfer - Pool or ISFSI to DOE 3c. 4. 7 ISFSI Operating Costs 3c.4.8 Security Staff Cost 3c.4.9 Utility Staff Cost 3c.4 Subtotal Period 3c Period-Dependent Costs 3c.O TOTAL PERIOD 3c COST PERIOD 3d - GTCC shipping Period 3d Direct Decommissioning Activities Nuclear Steam Supply System Removal 3d.l.l.1 Vessel & Internals GTCC Disposal 3d.l.l Totals 3d.1 Subtotal Period 3d Activity Costs Period 3d Collateral Costs 3d.3 Subtotal Period 3d Collateral Costs Period 3d Period-Dependent Costs 3d.4.1 Insurance 3d.4.2 Property taxes 3d.4.3 Plant energy budget 3d.4.4

NRC ISFSI Fees 3d.4.5 3d.4.6 3d.4.7 3d.4 3d.O ISFSI Operating Costs Security Staff Cost Utility Staff Cost Subtotal Period 3d Period-Dependent Costs TOTAL PERIOD 3d COST PERIOD 3e - ISFSI Decontamination Period 3e Direct Decommissioning Activities Period 3e Additional Costs 3e.2.1 ISFSI License Termination 3e.2 Subtotal Period 3e Additional Costs Period 3e Collateral Costs 3e.3.1 Small tool allowance 3e.3 Subtotal Period 3e Collateral Costs Period 3e Period-Dependent Costs 3e.4.1 Insurance 3e.4.2 Property taxes 3e.4.3 Heavy equipment rental 3e.4.4 Plant energy budget 3e.4.5 NRC ISFSI Fees 3e.4.6 Security Staff Cost 3e.4. 7 Utility Staff Cost 3e.4 Subtotal Period 3e Period-Dependent Costs 3e.O TOTAL PERIOD 3e COST PERIOD 3f-ISFSI Site Restoration Period Sf Direct Decommissioning Activities Period Sf Additional Costs TLG Services, Inc.

Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Decon Removal Packaging Transport Processing Disposal Other Total Cost Cost Costs Costs Costs Costs Costs Contin ency 7,347 143,529 40 40 136 136 177 2,500 2,500 2,500 2,500 6

14 14 14 9,179 9,179 9,179 9,179 393 393 393 286 348 885 3,711 111 5,569 14,111 7,357 33,312 33,732 3,099 2,420 2,054 5,228 21,995 654 26,771 8,802 71,024 71,024 10 8

2 85 28 139 139 622 622 55 94 61 163 373 995 60 49 124 780 23 1,171 2,967 1,547 8,399 42,999 434 339 288 733 4,625 138 5,630 1,851 14,039 14,039 2,281 2,281 2,281 18 6

28 2,308 286 286 29 13 13 34 97 383 Total Costs 347 397 1,010 4,491 134 6,740 17,078 8,904 49,058 220,261 3,534 2,760 2,342 5,961 26,620 792 32,401 10,654 85,063 85,063 13,960 13,960 13,960 11 9

103 34 167 14,127 1,362 1,362 63 165 107 74 198 606 1,968 NRC Spent Fuel Lie. Term.

Management Costs Costs 119 13,960 13,960 13,960 13,960 397 1,010 4,491 134 5,459 1,781 14,338 14,338 3,534 2,760 2,342 5,961 26,620 792 32,401 10,654 85,063 85,063 11 9

103 34 167 167 1,362 1,362 63 165 107 74 198 606 1,968 Table C-2 Diablo Canyon Unit 2 PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Appendix C2, Page 7 of 8 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

Off-Site LLRW Decon Removal Packaging Transport Processing Disposal Other Total Cost Cost Costs Costs Costs Costs Costs Cantin ency 8,255 161,255 45 45 153 153 199 2,809 2,809 2,809 2,809 16 16 16 12,181 12,181 12,181 12,181 521 521 521 313 380 968 4,056 121 6,087 15,424 8,042 36,414 36,872 3,388 2,646 2,246 5,715 24,042 715 29,264 9,622 77,637 77,637 11 8

2 93 31 152 152 680 680 60 103 67 178 408 1,087 66 53 136 853 25 1,280 3,244 1,691 9,181 47,003 475 371 315 801 5,056 150 6,154 2,023 15,346 15,346 2,493 2,493 2,493 20 6

30 2,523 313 313 31 14 14 38 106 419 Total Costs 379 434 1,104 4,910 147 7,368 18,668 9,733 53,849 245,130 3,862 3,017 2,560 6,516 29,098 865 35,418 11,645 92,983 92,983 17,483 17,483 17,483 12 10 113 37 182 17,665 1,582 1,582 68 184 117 81 216 666 2,249 NRC Spent Fuel Site Lie. Term.

Management Restoration Costs Costs Costs 129.849 17,482.561 17,482.561 17,482.561 17,482.561 433.612 1,103.572 4,909.517 146.555 5,967.697 1,946.565 15,672.494 378.884 1,399.830 18,667.946 7,786.263 38,176.573 15,672.494 229,327.662 3,862.483 3,016.550 2,560.418 6,516.444 29,098.312 865.385 35,417.653 11,645.340 92,982.585 92,982.585 12.301 9.607 7.837 2.756 112.795 37.087 182.383 182.383 1,582.228 1,582.228 0.791 0.791 68.378 183.992 117.174 80.655 215.949 666.148 2,249.167

Diablo Canyon Power Plant Decommissioning Cost Analysis Activity Decon Index Activity Description Cost 3f.2.1 ISFSI Demolition and Site Restoration 3f.2.2 ISFSI Area Soil I Sediment Control 3f.2 Subtotal Period 3f Additional Costs Period 3f Collateral Costs 3f.3.1 Small tool allowance 3£.3 Subtotal Period 3f Collateral Costs Period 3fPeriod-Dependent Costs 3£.4.1 Insurance 3£.4.2 Property taxes 3£.4.3 Heavy equipment rental 3£.4.4 Plant energy budget 3£.4.5 Security Staff Cost 3£.4.6 Utility Staff Cost 3f.4 Subtotal Period Sf Period-Dependent Costs 3£.0 TOTAL PERIOD 3£ COST PERIOD 3 TOTALS TOTAL COST TO DECOMMISSION 13,073 TOTAL COST TO DECOMMISSION WITH 25% CONTINGENCY:

TOTAL NRC LICENSE TERMINATION COST IS 70.82% OR:

SPENT FUEL MANAGEMENT COST IS 14.2% OR:

NON-NUCLEAR DEMOLITION COST IS 14.98% OR:

TOTAL SCRAP METAL REMOVED:

1 TOTAL CRAFT LABOR REQUIREMENTS:

EndNotes:

nla - indicates that this activity not charged as decommissioning expense.

a - indicates that this activity performed by decommissioning staff.

0 - indicates that this value is less than 0.5 but is non-zero.

a cell containing" - " indicates a zero value TLG Services, Inc.

Table C-2 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2011 Dollars)

Off-Site LLRW Removal Packaging Transport Processing Disposal Other Total Total Cost Costs Costs Costs Costs Costs Contingency Costs 1,371 27 294 1,692 16 3

20 1,387 27 297 1,712 20 4

24 20 4

24 28 4

32 54 11 65 11 2

14 69 14 83 54 108 32 193 1,461 134 333 1,928 145,167 2,506 14 9,572 106,024 60,063 323,347 218,618 31,702 14,580 124,490 768,430 292,711 1,463,605

$1,463,605 thousands of 2011 dollars

$1,036,573 thousands of 2011 dollars

$207,854 thousands of 2011 dollars

$219,178 thousands of 2011 dollars 77,728 Tons 1,686,102 Man-hours PG&E Letter DCL-15-044 Document P01-1648-001, Rev. 0 Table C-2 Appendix C2, Page 8 of 8 Diablo Canyon Unit 2 DECON Decommissioning Cost Estimate (Thousands of 2015 Dollars)

NRC Spent Fuel Off-Site LLRW NRC Spent Fuel Site Lie. Term.

Management De con Removal Packaging T~ansport Processing Disposal Other Total Total Lie. Term.

Management Restoration Costs Costs Cost Cost Costs Costs Costs Costs Costs Con tin ency Costs Costs Costs Costs 1,692 1,540 29 321 1,891 1,890.793 20 19 4

22 22.294 1,712 1,559 29 325 1,913 1,913.087 24 22 4

26 26.491 24 22 4

26 26.491 32 30 4

34 34.472 65 60 12 72 72.487 14 12 3

15 14.785 83 75 16 91 90.951 193 60 118 35 213 212.695 1;928 1,641 147 365 2,152 2,152.273 14,079 103,464 163,095 2,816 16 12,702 115,895 65,655 360,179 17,612.410 113,238.902 229,327.662 1,036,573 207,854 14,688 245,617 35,617 16,380 165,199 839,971 319,963 1,637,436 1,165,823.467 227,347.300 244,264.727

Decommissioning Cash Flow 2015 Dollars Diablo Canyon Power Plant Unit 1 (1 page)

Decommissioning Cash Flow 2015 Dollars Diablo Canyon Power Plant Unit 2 (1 page)

PG&E Letter DCL-15-044

Year 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 TOTAL NOTES:

1)

2)

NRC Scope (Radiological)

$27,854,017

$164,259,640

$186,734,990

$187,935,099

$118,024,616

$117,648,431

$56,713,736

$23,952,497

$24,039,473

$23,952,497

$23,952,497

$23,952,497

$24,039,473

$56,849,188

$47,520,245

$1,392,963

$1,475,130

$650,765

$273,514

$273,514

$290,992

$273,514

$273,514

$273,514

$290,992

$273,514

$273,514

$273,514

$290,992

$273,514

$273,514

$15,210,564

$225,976

$1,129,992,410 Diablo Canyon Power Plant-Unit 1 Decommissioning Cash Flow (Note 1)

Estimated in 2015 Dollars Non-NRC Scope Spent Fuel (Non-Radiological)

Management Total

$136,124

$1,865,698

$29,855,839

$1,314,337

$18,951,134

$184,525,111

$3,563,416

$25,695,149

$215,993,555

$4,036,010

$27,282,026

$219,253,135

$4,998,489

$14,136,154

$137,159,259

$4,998,491

$14,136,158

$136,783,080

$1,335,476

$8,958,805

$67,008,017

$7,591,515

$31,544,012

$7,591,515

$31,630,988

$7,591,515

$31,544,012

$7,591,515

$31,544,012

$7,591,515

$31,544,012

$7,591,515

$31,630,988

$5,779,975

$62,629,163

$3,400,545

$2,879,812

$53,800,602

$24,749,777

$6,070,050

$32,212,790

$24,756,911

$6,070,050

$32,302,091

$8,340,686

$6,086,854

$15,078,305

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$6,095,502

$6,386,494

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$6,095,502

$6,386,494

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$6,095,502

$6,386,494

$6,095,500

$6,369,014

$6,095,500

$6,369,014

$5,992,778

$21,203,342

$4,134,185

$4,360,161

$81,630,262

$272,829,424

$1,484,452,096 PG&E Letter DCL-15-044 Cummulative Decommissioning Estimate

$29,855,839

$214,380,950

$430,374,505

$649,627,640

$786,786,899

$923,569,979

$990,577,996

$1,022,122,008

$1,053,752,996

$1,085,297,009

$1,116,841,021

$1,148,385,033

$1,180,016,021

$1,242,645,184

$1,296,445,786

$1,328,658,576

$1,360,960,666

$1,376,038,971

$1,382,407,985

$1,388,776,999

$1,395,163,493

$1,401,532,507

$1,407,901,521

$1,414,270,535

$1,420,657,029

$1,427,026,043

$1,433,395,057

$1,439,764,071

$1,446,150,565

$1,452,519,579

$1,458,888,593

$1,480,091,935

$1,484,452,096 Trust Account Funding

$1,138,692,019 Market Value Cash Flow is based on construction of Independent Spent Fuel Storage Installation (ISFSI) and assumes Department of Energy (DOE) Used Fuel Repository opens in 2024.

Trust Account Value of $1,138.7 million Market Value as of 12/31/14.

Page 1 of 1

Year 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 TOTAL NOTES:

1)

2)

NRC Scope Radiological)

$51,372,491

$141,209,888

$185,736,125

$181,522,866

$138,392,214

$138,392,214

$46,755,333

$30,908,427

$30,800,289

$30,800,289

$30,800,289

$30,908,427

$67,067,498

$52,198,681

-$2,537,623

-$2,570,813

-$839,649

-$8,356

-$8,356

$9,125

-$8,356

-$8,356

-$8,356

$9,125

-$8,356

-$8,356

-$8,356

$9,125

-$8,356

-$8,356

$14,905,440

$34,444

$1,165,800,649 Diablo Canyon Power Plant - Unit 2 Decommissioning Cash Flow (Note 1)

Estimated in 2015 Dollars Non-NRC Scope Spent Fuel (Non-Radiological)

Management Total

$125,110

$3,437,844

$54,935,445

$583,475

$10,115,047

$151,908,410

$2,434,868

$7,206,631

$195,377,624

$2,917,279

$7,867,598

$192,307,743

$3,675,789

$10,317,276

$152,385,279

$3,675,789

$10,317,276

$152,385,279

$563,957

$9,145,398

$56,464,688

$8,646,587

$39,555,014

$8,646,587

$39,446,876

$8,646,587

$39,446,876

$8,646,587

$39,446,876

$8,646,587

$39,555,014

$7,030,847

$74,098,345

$14,034,699

$6,337,739

$72,571,119

$92,417,094

$6,337,691

$96,217,162

$92,714,297

$6,337,691

$96,481,175

$31,122,370

$6,355,234

$36,637,955

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,364,259

$6,373,384

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,364,259

$6,373,384

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,364,259

$6,373,384

$6,364,259

$6,355,903

$6,364,259

$6,355,903

$6,257,008

$21,162,448

$4,315,718

$4,350,162

$244,264,727

$227,347,300

$1,637,412,676 PG&E Letter DCL-15-044 Cummulative Decommissioning Estimate

$54,935,445

$206,843,855

$402,221,479

$594,529,222

$746,914,501

$899,299,780

$955,764,468

$995,319,482

$1,034,766,358

$1,074,213,233

$1,113,660,109

$1,153,215,123

$1,227,313,468

$1,299,884,588

$1,396,101,750

$1,492,582,925

$1,529,220,880

$1,535,576,783

$1,541,932,687

$1,548,306,071

$1,554,661,974

$1,561,017,877

$1,567,373,781

$1,573,747,165

$1,580,103,068

$1,586,458,972

$1,592,814,875

$1,599,188,259

$1,605,544,163

$1,611,900,066

$1,633,062,514

$1,637,412,676 Trust Account Funding

$1,486,796,826 Market Value Cash Flow is based on construction of ISFSI and assumes DOE Used Fuel Repository opens in 2024.

Trust Account Value of $1,486.8 million Market Value as of 12/31/14.

Page 1 of 1